Hello hi how are you all how are you all fine If you are happy and having fun, my dear class 11th Student students brother finally whose you Was waiting very eagerly. Very Impatiently waiting for ma'am 10th 12th live sessions You have started marathons. But what about ninth and 11th, right 11th CS guys are waiting impatiently. Were. So your Barkha Ma'am your Barkha Ma'am come She has already done a blasting live marathon session. Today's session: Good evening son. Good evening Gauran. Om Krishna Sumit Deepesh Laksh Jyoti Good evening son, very warm welcome here. Our Channel This Is Barkha Ma'am Your Epic Guru And today's session is for class 11th CS students. This is going to be very important for you. Now you are thinking ma'am only class 11th CS Class 11th CS as well as Class 12th CS Wale Age Well Age Class 11th IP These three can watch this session Because there is class in class 12th CS also This is the complete recap of 11th CS. two chapters Your entire class on starting Python It is based on 11th only. Right? And also Most of the part in class 11th IP also Your CS IP is repeated. similar Is. It is beans. So today's explosive session Only for class 11th CS students Rather today's explosive session is for class 12th and Class 11th IP is for both. Ok? So very warm welcome here again the ok ok Let go All the sessions have arrived, please share them. quickly Please share the session with me. Hello Ishita Hello Deepesh Krishna Yash Kirti watch session a little It will be lengthy because today we will cover the entire computer Your complete book on science is Computer Science. I will complete it completely in one video. In the same session in the same life, okay? Sit comfortably and peacefully in your take a book, notebook, water bottle, something Sit down with food and drinks and have a fun session Enjoy it and wherever there is any doubt If it happens then son we are connected here. Is. Just keep writing in the comments. Isn't it? I am going to read everyone's comments. Okay, good evening son. Good evening ma'am. Will you start from the basics? Oh absolutely From the basics. The child who has not yet attended class I didn't even open the book in 11th CS. This session must be for that child too. And whoever has read it completely and very Quickly Revise Once in the Best Way wants to do. This session is for him too. Meaning, from zero to hero or topper child, everyone This session is very important for a child. It is going to happen. And as I said, history It is a witness that CS, IP, IT, AI you can score 100 out of 100 in these subjects You can bring it comfortably. just what to do It happens? A little hard work and a little study it occurs. As I go on, Just keep studying. Isn't it? Hi Sumit. Hello Devendra. Hi Shiv Prasad. Very warm welcome here. Sharing the session Let us go. Tell your friends, Class 11 One such session of CS has come. Barkha Ma'am She has brought what is a gain changing session. If your exams have not started yet It happened and you haven't studied anything. We Ma'am, I am stuck with many subjects. Son, today's session is important for all of you. It is going to happen. Now how many children have pre Board exams have started. Sorry Board exams have started. just Write it quickly in the comment section. Ma'am, will you read the list? The list also Will you teach? I have brought the entire CS, right? computer science class 11 complete Complete holes will do quick revision. Anything Will not leave. We will go through each topic one by one And will bring 100/100. Ok? So Class 11th CS students, listen carefully. Each topic has to be completed today and 100/ You have to score full 100 marks. Ok? And With this same enthusiasm and this same zeal We will start today's session. Ok? Let go So let us do it, Shri Ganesh. I have not accepted defeat, Will accept defeat. Full 100 out of 100 marks Will bring it. What is there to fear when it rains? Ma'am is there, I will crack the exam with you. Ok? Ok. So very warm welcome here. Class 11th Computer Science is going to be a blast today. The session is about to take place. In which we quick Will revise the entire CS in one shot Your doubts will be cleared in a live session in the format We will complete it together. And That's why I named it That Is Final exam marathon. many children have I was told that ma'am, like you half yearly Brought the marathon. in the Half Yearly Marathon You explained it. Similarly, once you final Bring the exam marathon also. So you Today, according to the requirements of the people We have started this. Ok? Hello the Impact. Hi Deepesh. Hi Sumit. son who Even children are joining the session immediately. Please share it. And one important thing if If you are having trouble with notes then Don't panic. I juggled your notes Is. Barkha ma'am name telegram channel go and join Do it. You will find all the notes there very quickly. It will be available very soon. Ok? Hi Wood Cutter, got it? Now all of them Children who are thinking that Ma'am class What about 11th IT? AI class 11th What? Ninth IT Ninth AI ka what ma'am? So have some patience. We just started Is. Now this type of session with whole syllabus Will keep meeting you. Isn't it? So all the children Video lectures on all subjects Will get it. You are very good at your studies You will do it in the right way and this is guaranteed by your Barkha. It's ma'am's. Ok? I have full faith that you will get full marks if you complete You will understand the session very well. Ok? So These are all the sessions that you need to who can make a hero from zero These are ultimately game changing sessions. Ok So let's start with the syllabus. In. ok ma'am output find questions? Yes, all these questions will also come, son. In the exam. Your CS paper No, I am telling you in that CS paper. What kind of questions do you get? Direct Very few questions come. Conceptually More questions come. Now Conceptually questions any program If given then find the error. If an error is given then Tell me the correct program. programmed If so, tell us the output. Such questions come. Isn't it? Understood Is it over? and programs with Questions also arise about writing a program. For this, for this, for this like this. ma'am The paper is on 27th. Good quick comment Write in the section how many children I have together are connected here right now that your When is the paper and on which date? Because almost Final exams for students begin It is going to happen from February. Isn't it? somewhere It starts from the first of February, somewhere It starts from February 5th, somewhere from 15th It is start. some children's exam Will happen in March also. So don't worry now It has to happen. First class before board exams Ninth and 11th exams are almost over. are in most schools and where they are not If yes, then we will go there till March. So this That's why I have brought the session in January. I have brought this session for you at the end of January. So I haven't read it yet. far too Haven't started reading. Ma'am, somewhere You have doubt in the topic. Don't become Python Used to be. The chapter on cyber safety will tell you I am not able to understand. Ma'am, where are you still If you have not read it then we have all the chapters here. Will cover. So quickly in the comment section Write when is your exam going to be held? ma'am Do you want to do NCERT? Look, I have I read the entire Sumita Arora book to you. So Sumita Arora Book's Almost In NCERT is written. Isn't it? Ok. 19 Feb 27 Fab what's up. Okay, fine. means that I have come at the right time for you with a fun session. I am. Isn't it? Ma'am if CS from here Get started. If you haven't read it, then read it completely. It is possible It can be absolutely complete. This marathon, which is today's session, is for them. It is also for all the children who have just have not studied anything till now and all those children also for those who have read everything and that I want to revise it. So revise as well It is important for both to start AI. Ok? It can definitely happen. and good You can pass this session with marks. You will see. Isn't it? Come on, okay, okay, okay, very Good, very good, isn't it? Well done. Just like that Maintain your response. Right? Let's go then Let's start today's explosive session and Let's start with Class 11th CS With the latest syllabus. Look until Don't do anything until you know the syllabus. You can. The first thing to know is this You should be able to pass your final exam. Which chapters will be asked in the exam? Which units will be asked and from there What is reading? If you don't know that What will come and how much to study, then how Will you do it? Did you understand what I said? So first of all So take a look at your syllabus. See CBSE according to 2025-26 The latest syllabus has been given by CBSE. Computer Systems and Organization 1st Unit in which we have to read three chapters Are. computer system and your There is a chapter on basic gates and Boolean Algebra and all. All these three things We have to cover it in chapters. Isn't it? Binary, octal, number conversion. After that Here are the questions you will be asked: That will be worth 10 marks in your exam. Now Look, you will find these three chapters in number 10. Have to cover and it is easy. Where The vehicle gets stuck because of number conversions and In Boolean logic gates and so on. So I am No, I will explain everything. Ok? Now it's seconds Computational Thinking and Programming Part One. This is the biggest problem it occurs. The questions that come from here That's not what happens, ma'am. something of the same You please help me. So she came to help Am. Ok? Computational Thinking and Programming with Python Beginner Level From the absolute zero level, we started here. It is completed. which is of 45 marks Weightage it holds in your exam. Meaning 45 Questions about numbers will come from here. 70 There will be a number paper. 45 marks from here only You will gain. then the third unit that is Society Law and Ethics. Both these units It's your theory and yours alone. It is a practical unit. Take care. From here The questions that will come will be of 15 marks. So, together, your total will be 70. Marks will be theory marks. and what What about practical? So son, 30 marks This will be your practical. Did you understand? How many marks? It will be of 30 marks Your practical. And this is how your total will be 100. Now almost all the children Practical exams must have already been conducted. in schools. It's done, right? Ok. Ma'am, if anyone CS starts here so absolutely. Can you complete it if you Hello Kalyani Ashutosh, if you start your journey from here You can definitely complete CS. Score exactly 100 out of 100 marks You will, but there are some solid videos that It is already available on the channel, you can watch it. Now you can take a look at the children who I doubt that I am not able to find the videos ma'am So what should I do son, first of all read the notes For this, join the Telegram channel. The link to which is in the description. Now look I have provided links to all these playlists. Is. Here we have seen all the dictionaries, Tuples, list manipulation, and more. If you scroll through this, you will get all Video lectures will be available online. From the first chapter of Unit One to Unit Two Till complete. Isn't it? Unit Three Society Law Is. I will complete the loss today in this session. In. So understand it very carefully. Understood Is it over? So you will find all the videos here Will meet. Understood? Where is the link now? Is? So top of the playlist Go to the description, you will find it at the top. Named Complete Playlist Link. Now The biggest problem that comes after that is I wish someone could tell me which programs Will come in the exam. Isn't it? this problem It happens, right? I wish someone could tell me that, brother. Do this program. like this Programs directly into your exam Will be asked. So your solution for that too is Barkha Ma'am did it. I brought one such session I have basically 40 programs in Python. Programs that come as soon as the exam Are. This is where exams come from. Who Your 40 programs are what I explained here. That was a 100% successful session in which We have done it. Now you are thinking, ma'am, I wish If you can find a link to this as well, then the link to this too It is in the description. Go check out the Top 40. It is for both CS and IP holders. Is No? It's not just for CS people. Both CS and IP people are from here. You can do programs. Even Class 12 Those with CS IP can also do it because He also has Python. Isn't it? understand my point Am I here? These are all your programs Will come in the exam. So now whatever paper will be there Son, whatever paper you will have now, these programs Do it well and go inside it as much as you can I have explained its link description Will merge in. ok ma'am how much session It will be lengthy son, approximately, please accept it. That we will have to give 2 hours to this session. Now The entire CS is not finished in half an hour. will be. Isn't it? I have to read the entire CS. Study seriously and take the exam seriously. You want to burst it and come back. So many children I see all the last ones linked here. I will stay here till then and will be careful and mindful You will understand each concept and clear any doubts. If it happens then write it here and even before that the session Share it quickly, don't go without liking it, Don't leave the session without sharing because Your one like and your one subscription Your biggest motivation Barkha Ma'am Is. Ok? That's what likes and subscriptions are for. What motivates me is that you I bring all those things to the people. which will be asked from you in the exam On this basis you will score full marks. Got it? So let's start today Had a blast session. Unit One Computer System with basic concepts. Each unit, each chapter, all covered here do. Is it okay ma'am? 27 January Syllabus Unit One and Three and Dictionary Math Model Random Model Random Module Statistics I have brought all the modules, son. You If you wait a little in the session, all your doubts will be cleared. It will become clear here. Today in this session we These will also cover all the modules. unit Will also cover One and Three. Ok? Now I'll teach this unit and then I'll I will solve your doubts. Isn't it? one by one We will cover the topic and clear our doubts. Will go. Ok? So don't panic That ma'am is not seeing the comments. Comments When will we see it? Covering each topic one by one Will go. Then if you have any doubt then I will I will read the comments. Done? Let's do it Start. Should we get ready? Ready ho zara thumbs Please give it to me and tell me. Such a good energy with as I came here to teach you Am. Absolutely ma'am, something for practical Give me some tips. I will give it to you. of practical I will also give you some tips. Practical at the End I will also tell you the questions. Ok? Ok. After today's session you will be able to program Can you correct it? You can definitely do it. You can definitely do it. and for programming Taking another separate particular video I will come. CS is not over here after this. It happens. Don't think that this is a CS Once the video came, it was over. No son Exams are in your fab. Right now something like this These are awesome videos. There are videos that If you see it, you will think that all these Whatever questions ma'am asked you to ask, as it is These have been asked in your paper. So he now The question session is still left. remains My friend. wait. Today we will just revise Are doing. I have to revise it. Ok? Let us go Just give me a thumbs up and tell me quickly. This same enthusiasm And with this energy, get ready? Get ready. Get the session started. do it START SESSION. Ok, fine. So the most First Unit One with computer system Let's come. Now look, this is very basic. There is a unit. Computer system means what? That A system where you input something Yes, that process happens and you get the output. It is available. So a computer system is It is an electronic machine in which you input You give it, that process happens, after that you We get the output and this is the result. Then you can store it for future use. For this also. so basic of computer system If you get the basic definition then you will write this. Now this is based on a bicycle. this process It continues continuously. It keeps going is in the computer system. That Is IPO Cycle input process and output. Ok? Now here to complete these processes To complete all these tasks There are some devices. which ones Are there devices in a computer? ma'am We use the keyboard for input and Another device here for processing It is called CPU. to the CPU Let's use it. And if we talk about output to the monitor for MAM output The output is shown. So this three are the Basic Computer Devices That Is Keyboard, CPU and monitor based on IPO cycle Is. The computer is as input as you give it. Generates and gives output. Ok? Now Did you understand this much? Very basic part. Moving on to the functional components What are the components of a computer system? So the functional components are The four main categories of computer systems are divided into. Now those four men Is there a category? The first category is Your input unit. Isn't it? In the input unit What do we do? Through keyboard, mouse Plenty of inputs via joystick There are devices through which we can get variety of data that is input into the computer Are. Now variety of data means audio, video, text, graphics, and nowadays Sense organs through biometric sensors You can also input this into the computer. Understood? So the same line is written that to Used user to enter the data and Instructions, we are using the input Devices. Now whatever data and instructions How does what you give to the computer go? In machine readable format. You are thinking right now So what is machine readable format? So machine readable format zero and one The format is what we call binary. Language. Because the computer understands Only binary language. Only Binary Language. And what is zero and one? Beats Is. So the data is in this bits format only It goes into the computer and is processed. Ok? So the input device must be the user Takes data in an understandable format. But how is that data processed internally? Is? How does data reach the internal processor? Is? Zero goes to One. Got it? Let go. So keyboard, mouse, scanner, microphone, Webc. Ok? These are different devices Through which different types of data We input. Right? through the keyboard You input textual data. of the mouse Through this you give instructions. Left Clicks are right click buttons. scanner Through this you can scan any type of image. You can do it. Your voice through the microphone You give input. We can do anything through the web You can input an image. Right? Any If the picture has been clicked, it can be taken. Now After this comes many more. In this MICR, OCR, joystick and more Are. Ok? Now output unit. Ok? What happened to the output unit? Output Unit There is a unit on which you get the output shown. Is. Look, a question arises here. Is No? What does that question become? MCQs It becomes necessary to identify the input/output units. It happens to you. And generally we are confused Let's go. We know which one Is it input? Which is the output. But still What to do? I don't understand ma'am. Sometimes Confusion is bound to happen. Isn't it? So Don't get confused. Take care. Now The output unit where you see the result On which you see the output. So the display Result after processing. of processing The result we see after that is How do we see the results? user Understandable Human Understandable In format. So the amount of processing that is happening That machine is in an understandable format and whatever input and output we get It appears in human readable format It is visible. So now there are five output devices. That's it. Apart from that, all the devices are All are input devices. Who is he now There are five output devices from? monitor, Printer, speakers, headphones, projector. Ok? Talking about monitors, soft copy The output is obtained. Speaking of printers You will get the hard copy output here. On the page. Voice output on speaker means sound The output is obtained. that do voice input That's what you hear. of headphones If we talk about it, here also you can use headphones etc. Do you use it? What do you even get there? Only voice output is available. sound output Large view of any image on end projector I show you. So this is also an output. Came into the device. So did you understand this much? Did you understand this much, ma'am? Class 10 IT Son IT IT guys, just the day after tomorrow your live Is. Why are you taking tension? yours the day after tomorrow is live. It will be explosive live. In that we We will discuss the most important questions Which you will get for your board exams on 27th February. Will come in the exam. So, how many children here IT AICS IPs are connected Son, everyone's live session is already your Varkha Ma'am has already made the plan. If you know this Do you want to know when the live session will be? So quickly Subscribe to the channel from. And Stay updated on community posts. over there The post will be posted. Ok? Regular Ka Ma'am A separate class of output find queries take away. Absolutely, absolutely, isn't it? There will be separate classes, son, take care of everyone. Ok let's move ahead. Now what is a CPU? Is? Processing device. Now the CPU is full The form is asked. many children Let's call it control processing. But it Is not control processing. It Is Central Processing unit. We Remember This Thing. Central. The central device of a computer What does that do to the overall device? control Does. Now we know it by another name. Are. Brain of computer. like our There is a brain in the human body, which Devices control every part of our body. Does. Each one gives instructions What we should do and what we should not do. Remembers everything. exactly the same This is where the CPU is located. Now in CPU The cabinet that you see is the CPU. Does not happen. Talk internally here. So you see, there are three parts of the CPU. Are. CPU work in three major units Does. The first of which is yours Control unit. You must have heard the name Control of the unit. Right? As many as the control unit Operations take place in the computer system He controls it. Correct? Directs Data flow between memory, ALU and input Output devices. Now understand this carefully. What does a computer contain? is basically There is memory internally. input Output The devices are connected. and also here But there is a unit which actually Does the processing. So, as many devices You connect it to the computer system, right? It is his job to control them all. It happens. Execution of instructions, flow of data When data comes from memory to the processor To deliver. Return when processing is complete storing in memory and then Bringing it back to the monitor. Isn't it? These All the work is about control. Now There is a second unit which actually Does the processing. That is ALU. Its bhi full form aata hai beta arithmetic logical unit. Got it? Did you understand? Now this What is the meaning of Arithmetic Logical Unit? that whatever logic you apply or you Whatever calculations you get done, how much All those who perform arithmetic operations through the same processing unit Processes take place. then perform calculations Like plus minus into division and any logic And or not compare whatever logic you apply All the operations you do are through ALU. So, did you understand the arithmetic logical unit? Did you understand it well? Any doubt any Doubt? No, right? Everything is becoming clear Things? Legend Says Ma'am Not a Program Are made. Son, everyone will be successful. Everyone will be made. Now Your Barkha ma'am has come, right? Right now this We've taken the first live and there have been many more. There are lives on the basis of which you can accept this. Maximum four to five live sessions Class 11 I am going to take CS. Ok? These reviews There is a session of. After this, many amazing There are sessions on the basis of which you can also do the program. You will make the correct answer on the basis of You will do it. Ok? So don't worry. Ok? Don't worry at all. Ok? Ma'am please post the syllabus. Beta Syllabus You will get it. Do a little search. Below It will be available in the video. I have read the syllabus is given. Ok? Let's move ahead. Now registers. Now! What are registers? Understand carefully. Registers are also small memories. Where data is temporarily stored Is. The time the data is being processed right, so we can say that it is a temporary The data gets stored in the memory. What we call very small and fast Memory. What does it mean? in actual understand. Understanding the concept. Isn't it? This happens Your input device. Right? where you from You input. Explain a block diagram I have been. Read this block diagram carefully. If you understand then the whole story and the complete picture It will become clear. Look, this is the CPU. You know there are three units in a CPU. Are there. What are the units? First of all, the memory unit comes here. Isn't it? Or don't call it memory. here You install the control unit. Your gift will come ALU. Memory will come. Ok? To understand Did you come well? Let me tell you after this To you. Now how does its flow data flow Is? This is where your input device comes in. Here comes the output device. This is called Block diagram. Sometime to make this also He goes to the exam. Isn't it? through it You will understand the entire flow and now whatever I will explain it and it will become clear. Now what Am I telling you here? understand carefully That whenever you input something. accept it You inputted 4 + 8 from the keyboard. We will enter ma'am from the keyboard. So What happened to the keyboard? Basic input devices Done. You can do 4 + 8 inputs from the keyboard. Did. So what is the function of the control unit? The job of the control unit is to process whatever data comes in. Whatever is there, it gets controlled first. So What does the control unit do? This 4 + 2 Where will it deliver it? Near ALU. Now Where will it go before it even goes to ALU? data? First it will be saved in memory. Data saved in memory. Meaning memory I saved your 4 + 2 because memory The data will remain there only when it is processed. Then your process of this data will be 4 + 2 LU It will generate six. What did the LO generate? Did? At. Okay, do it. 4 + 2 tax Take. What did the LO generate? Six Generate Did. Ok? 4 + 2 that is six. And As soon as ALU did the calculation, it Where will the data be saved again? in memory It will be saved. And who would be doing all this work? Control Unit Controlling Instructions By giving this, get all the data flowing in this manner Has been. Now as soon as the answer is generated The LU will signal to the control unit that The processing has been completed. Now The processing has been completed. So Where does the control unit store this output? Will you deliver? Output unit that is monitor. So where you have written 4 + 2, next to it You will see six being calculated on the monitor. It will be visible. So overall here the where the data is in memory at the moment When processing is taking place, it is called memory. It's your RAM. What is called memory? RAM is where data is temporarily stored. It happens. But memory and RAM RAM and Basically there is another short memory which is called It is called register. When the processor data It looks for more RAM for processing. If it is not found then it is actually late from RAM It takes time to find the data, so that register I go and save it. So register There is fast and small memory where Temporarily save data for processing It happens. So when the data is not available in RAM If it is there, you can find it in the registers. And quickly processor time is saved. Do you understand now? Now comes the second thing Memory unit. So, like we have memory Similarly, computers also have memories. It is a storage device in which data is stored. all Instructions are stored. Whatever the result Whatever is being generated would also go and be stored Is. How many types of memory are there now? Let me tell you how many types of memory are there? in the computer? Ma'am take the computer marathon Take. Ma'am please give some details about the functions And teach everything. absolutely absolutely Absolutely. I understand it here now, right? till? So the first chapter is easy. Isn't it? If it is the first chapter then it is easy. So quickly Keep liking and sharing the session Join your friends who just joined Have been living here. clear? Ok. Now look what is written here? There are two types of memory. which two What type is it? One is primary memory and the other is secondary Memory. First, let us understand the concept of primary memory. question in the exam comes from this chapter from here primary What is memory? It is also called main memory They say. The second question comes here. The two memories I'm talking about What is the difference between them? Ok? So primary memory and secondary memory There are types of memories. Primary Two memories come into the memory. that is RAM and ROM. RAM ka full form ROM ka full The form comes. Its difference is also in the exam Comes. So, she keeps telling as many questions as she can. I'm noting it down. These come as it is. Keep taking notes down. in RAM and ROM Let's ask the difference. So RAM is random Access memory. ROM is read only memory. Random access memory that is accessible through the CPU Access is random. Where CPU data comes from Picks up for processing. where the data It is saved temporarily. You are a file You are making it. Suppose you If you are making the front page for me, then whatever you You can work on the document file now. Where are you temporarily saved now? The longer you work, the longer you The processing will be done and stored in RAM. You will understand it as soon as you Permanently saved with control s Where will that file be saved? It will be saved to your hard drive. in secondary memory because now that If it gets stored permanently then when CPU Required for data processing Directly connected CPU to CPU The memory that does this is now RAM. Suppose the lights go out while you're doing this. If the power goes out, the data will be lost. You did not save. That is why it is called Volatile that lights up when power goes out Your data remains in memory when you go He goes away. Data that remains temporarily Yes, he flies away. So it is called volatile Are. That is why it is temporary memory. Now I am talking about the second memory which The name is read only memory. read only memory What does she do? only the data it contains Isn't it in memory, you can read it? yes. You can only read it. In this you You cannot make changes. Otherwise, it is have to be directly contacted with Because the data here is It is permanently saved. Ok? So this is a non It is volatile memory. Does that mean power or Its data will remain permanent. There will be no effect on the data. So here Pe is non-volatile memory and it It will be called permanent. Now look at its example Which is the bio setup in which actually The data that is present during the booting process You must have heard about the booting process, right? Whenever your system has started booting Process run. Isn't it? When the system starts If you do this, the booting process runs. In which the computer is thoroughly checked. The operating system loads. Operating The system that operates the computer. So where is all its code saved? It happens? in Rome. Now if this system Started, booting process is underway and There is a power cut. The system shut down. So this The data doesn't go anywhere. this right there It remains permanently. restart Will be done. When the light comes on, the system will be on. The booting process starts again. Is. Ok? Because this data is made permanent remains. Now there is another type of memory. Cache memory and its question always comes up Is. Ok? What is cache memory now ma'am? Some kids call it cash. Isn't it? ma'am Three types, three types. Yes yes. Look basically There are two types of memories. That Is Primary and secondary. But cache memory is a special Type of memory. Ok? what is cache memory Is? It is a special type of memory. If we Talking about cache memory, what is it? Is there memory? Understand carefully. Cash Memory basically if we talk about CPU That is the processor. Isn't it? which stores the data Processing. What does the CPU do now? Where does the data come from for processing? ma'am? Takes up RAM for data processing From. You know about RAM, right? That Is Random Access memory. Now suppose that from RAM It is taking time to access the data. Ok? Here is the CPU idle. just sitting It was waiting for the data from RAM to reach it. Will reach. So the processing of CPU can be made faster. To do this, the efficiency of the system must be A special type of memory to enhance What is used is called cache memory. So cache memory is used here in between In. What do we call this? cache memory Which is being used here. Now the CPU What does it do? Instantly retrieves data from cache Is. Fast and most costly and It has an expensive and efficient memory. RAM Cache memory is even faster than that. In a way these are called registers. Ok? The work of the registers that I told you about No, this is what happens. then the data from the cache memory What happens? Access Fastly Efficiently The processor does. And this data is RAM. It comes near the cash only from here. Cash Now There are two types of memory. CPU Pay It comes inbuilt and you can also do it separately. You can apply this. Isn't it? Inbuilt on CPU It also comes with cache memory and you can also separately You can use this. So cache memory very Fast between CPU and RAM She works in. Understood? Let's understand this much Am I here? Ma'am Computer Ka Marathon Beta All the marathons are for class 10th and 12th. The schedule of marathons is decided, right? That You will find marathons on the schedule. Time Have you seen the table? Ok. Hi Naitik. Hi Ram. Hi Gamings. ok very warm welcome Here son. Keep sharing the session. Come on then I understood this much. The story of Ram and Rome It became clear. If there is a difference in the exam So you will write it down, right? Will he come? Correct Is? Now there are two types of RAM and ROM. Is. See their types also. Then we proceed Let's grow. Ok? If I were to look at the types of RAM If I go into it, there are two types of RAM. that Is S RAM and D RAM. Ok? S Rem means static RAM, D RAM means dynamic RAM. Ok? Did you understand? This is basically It is made up of transistors. These Made up of flip-flops and capacitors it occurs. From flip flops and capacitors It is made up of. do this again and again A refresh is needed. Dynamic This remains fixed in Ray. This No refreshment is required. Is it clear? Are you understanding it well? So basically there are two types of RAM. There is a difference in this also when writing in the exam. To. This is faster, this is slower. so too You can understand comparatively if you If you want to understand. Ok? After this, if we go to Rome Talking about it, there are three to four types of ROM. There are memories. These also have questions He comes in the exam. If I talk about Rome So how many types of ROM are there? Quick Tell. Do you know the types of ROM? Tell Quickly. What are the types of ROM? How many types of ROM memory are there? So Rome Write your memories in the comment section. Isn't it? And let's keep looking here also. Ok? Write in the comment section if you are from Rome If you know the types then do it quickly. Ma'am when will the break be? Oh, this is just the beginning It has happened and you are talking about a break. First Break after reading unit, second unit Break after reading. Understand? As many CS People are listening to me, reading each unit. We'll take a short break after that. Ok? So there are three units, you will get two breaks. Ok? First understand the entire unit very carefully. Look, ROM memory is basically P Rome, EP Rome. Now write their full forms. Quickly. In the comment section, their full forms Keep writing. Do they come or not? It's your test. Tell me quickly. AP Rome, AEP Rome. I will definitely explain. I will revise I have come to get it done. But let's check or check Yourself. Do you know their full forms? Are? EEP ROM. Ok? These are so many types There is Rome. If we talk about PROM So PROM means programmable read only Memory. very good. very good. three types of There is Rome. very nice. Isn't it? Let go. Programmable read-only memory and erasable Programmable read-only memory. Electrically erasable programmable read Only memory. Did you understand? programmable You cannot make changes to read-only memory. You can. Once saved, it It will remain permanently. erasable Programmable read-only memory We can erase the data once. But to erase it, use special Technique is used. That Is UV Raz. In the presence of ultraviolet rays Let's delete the data from here. and if Electrically erasable programmable read If I talk about memory only, then data from here You can read, write and delete it yes. Electric pulse is used here Goes to delete the data. of electric pulse. So Special Techniques Are used here in this permanent memory. Ok? Hello touch. I ma'am I miss you so Mach. I missed you all dear students. The class 11th students were so upset. Regarding the syllabus, Ma'am, please revise it fully once. Bring it. Ma'am, please complete it fully once. Isn't it? So brother, ma'am has come with the session. Let us go Move ahead. They come to secondary memory. Now the primary memory is confirmed. Understanding Am I here? All types cleared Are. What do you call secondary memory? You call it olary memory. And this is a permanent There is memory. So whatever you do on your computer Do you put a hard drive in the system? Pendrive to save it permanently you use, you use a hard drive Yes, to backup data etc. It is basically secondary memory. In which you can store large data. yes. Data stored in TV in GB here It happens. So for long term storage we Let's use this. This is also a non-volatile There is memory. That means the data you It was permanently saved in it It is saved permanently. If in the middle Even if the electricity goes off, its The data is not lost. non volatile No data loss. Volatile Data To get lost. So volatile is only one There is memory. That is RAM. the rest of Rome and Secondary storage, hard drives, etc. It is non volatile. So remember this trick. Ok? very good. Good very good Anshika Programmable Read Only Memory Excellent Isn't it true I just want your comments here Let's move ahead and now look at its examples. Hard Disk SSD Pen Drive CDVD Memory card, now you will get it well It is clear and watch the detailed video. So, son, the one with the computer system, who is the first I have discussed the chapter in great detail. It has been explained, go and see it from there once. Okay, but since we're doing a quick review. So now you have to understand all the things about it. The capacity is also large as I Told that it is available in terabytes. Terabyte 2 Terabyte up to 4 Terabyte memory It is available. You understand terabyte, right? Bigger than a gigabyte. And this is basically this Comparatively, if we talk about RAM ROM So it is a little slower. So now if The question came in the exam that primary What is the difference between memory and secondary memory? Is? So you will come back after writing the primary memory and What is the difference between secondary memory? How many types of memories are there? He gives you I have to tell you. Ok let's move ahead. ma'am really you You made CS is. ok you are the best teacher. Thank you so much Son. Love you all. Now memory measurement is Mark it. Highlight this. One of its You will see it in the question paper. will get. How to measure 100% memory yes? So the memory of the computer is It happens in zero and one. Ok? Meaning Zero and one are the smallest units. What you call bits. Then from four bits Together they form a nibble. Four bits mean 1 0 1 0 What is made up of these four bits? One nibble. Remember. Remember these units. If I mixed eight bits. Eight Bits Felt Gave. So what will eight bits consist of? 1 byte byte bahut confusion hota hai Ma'am in bits and bytes. Ok? and so on 1024 What happens when you combine bytes? 1 kb that is KB means 1 kilobyte. similarly What happens when you get 1024 KB? 1 Megabyte. And what if you get 1024 MB? Is it possible? 1 gigabyte. Ok? remember Is. What happens if you get 1024 GB? 1 Terabyte. Understood this thing. Now only The story does not end here. These MB KB TV TV pe aake rukna nahi hai. Next to it is petabyte yottabyte yottabyte It's all there. If you search, then this The chart is very lengthy. But because right now We have it available in the same amount. We read the memory size till here. Correct Is? Did you understand? Let's move ahead. Now Hardwares. What are the hardwares now? Are there? We have done all these things so far I have completed it. So whatever the hardware There are physical parts that are physically Occupy space by touching it You can. Ok? which any running program software What is capable is called hardware. In which all hardware devices are included Are. your keyboard, monitor, printer, Mouse, scanner and all the devices you You see, all that is called hardware. And What is software? So son Software is all those programs, Instructions are what we give to the computer. We give. Does any hardware device work? Will he? To tell that, we are in it Let's install the software. Ok? Is? Like for example, you listen to music Do you want to watch a movie or do you want to read a document? Have to make it, have to make a presentation. So this How will you do it? When it has that software. Understood this thing? So software is a Program and What is Program? A program is a set of instructions. These can also be asked in MCQs. Now How many types of software are there? So There are two types of software. System Software and Applications Software. There is a difference in this too and this You are also asked. Ok? Ma'am Cyber Get the security chapter done. he too I will do it son. Complete quick in today's session Will revise. Isn't it ma'am? class 10th data Science OKs data science marathons too Don't panic, your paper will come on 20th February. Yes, I know data science people, before that you You will get everything and that is my promise. Okay, I will not do what I promised you. Let's talk about system software So what is system software that controls Do the system only for the system are made for and all the computers They have the hardware to run them Capable of running a race. Means that for example you have hard You will be able to store data only if you have a drive. Data can only be processed if you have a processor. Will get it. You only have a keyboard You will be able to input actual data. Got it? And In enabling all these that it is its work Do it. We have to put software in them. Are. That is system software. Most of it The first software comes your operating System. The second is language translation. And the third is utility software. Is No? Now let's look at these in much more detail. I will not explain. Just understand that Operating system is the only software Which is very important. As What is the essence of soul in our human body? You know this, right? If our human body If I don't have a soul, I'll be like a dead body. We will be. Just like if a computer If there is no operating system in my phone, then your The computer system will be like a dead machine. So overall all the work that the computer does Management operating system There is a system. Then, as you are now When you purchase your computer system He asks, which operating system? Need to install? Windows, iOS which one? Ok? So here you say that Windows 11 or 10 whichever is the latest operating system You install it according to the system. yes. What are language translators? Whatever you enter, the computer does not Understands. Why? Because the computer This is our language, ma'am. He knows our language It doesn't make any sense. So the computer's The language is that 01 01 language. Which is called machine language. And we who Those humans code in language It is an understandable language. So Human Understandable Language to Machine To convert to a language There are language translators. Now! I want to tell you the names of the translators. Which translators do we use? Have done. Ma'am when will the 12th class come? 12th Will the class also come? Check schedule 12th IPIT AIC Live Schedules I have told you. Ok? is made up Properly. Tell me which translators are there? Are there? Green up. Language translators. I am waiting. Then I will tell you the answer. Next is utility software. Now What are utility softwares? Who Provides utility to the system. Meaning system Provide facilities to. Look at the system These are the names of three software in software I am telling you this is important. without these The system does not work. Utility The software supposes you can backup your data Have to take it. So, you should get some backup software. Took. You have to compress the file. Yours The file is not being shared. So you have filed Compressed it. JB's file is for him MB I compressed it in KB. then the file There are compression tools. File data backup There are tools. These are all utilities Are. There are antivirus tools that Antivirus software is software that protects your Protects the system from viruses. So all this Let's come to utility software. Now Let me quickly add one more thing in the comments section. Tell me who is in the system you have What antivirus do you have installed and What are the names of language translator? OK, green up. mame assembler compiler, Interpreter. very nice. The first answer Mamta Jain is going to do it here in front of me. Very very good son then after that Ansh Swalia has answered ok anshika It is very good, isn't it ma'am, society law and that too I will teach you, son, the third part of Society Law. We will complete the unit today and go here. Don't worry about Okay, let's go to the language translator. compiler interpreter assembler comes There is a difference between compiler and interpreter note it down okay this question very There are variants in compiler and interpreter What is the difference? Compiler complete code once I complete it. Ma'am, one at a time It executes it. Where the error occurs, It tells us that there is an error in this line. Solve the error. And the whole code will be Executed in one go. This is compiler Joe That it happens fast. Now this is the interpreter's If we talk, the interpreter interprets each line Suppose the code is of 10 lines, then each line What does line by line do? Executes. So it would be a little slow Is. Did you understand? But the line in which An error will occur until that error is solved. The interpreter will not proceed further until So Python It is an interpreted language. in that An interpreter is used. That is why Python programming language is slow as Compare to Java C++. Got my point? Because your are used in Java and C++ compiler that compiles the first program Executes. clear? Come on, this This is the difference. And what about assembler? So earlier there used to be assembly language. Use assembler to convert it. It used to happen. in which mnemonics are used Were. Questions about assembler today It doesn't come. compiler interpreter this is Very Merchant. Ok? Move ahead and move ahead. Come to the application software. Application What are softwares? all of them Softwares are applications Softwares that provide convenience to the user Are. System software that runs the system We provide facilities. Application Software Which provide convenience to the user. whatever you Your work has to be done on the computer, whatever the Work as a Business You have some work to do. Edge A student, you have to do something. whatever then All those specific tasks we apply Performed through software. Now What might come under this specific user task? Is? What can application software be? Are? Your general purpose and special purpose. If we talk about general purpose then MS Word, Excel, Photoshop, web browser, all of that. It is general purpose. MS Word, Excel, Powerpoint Like any software is a business Person can also use it. Any student, There is a teacher, a doctor, any person. You can use your documents, reports, To create presentations, slides. But the special purpose softwares Yes, they are used for a special purpose Let's go. Like you have to go somewhere, So you can book tickets by railway tickets or fly flight. I have to book tickets for. So it is like that Not that you can use Word, Excel, PowerPoint Book flight tickets or railway tickets You will do it. Specific software for that It is ready, right? This is the website of IRCTC. You can book railway tickets from wherever you go. You will be able to do it. Got it? If you are looking for a salary I want to make some software, attendance system If you want to make it for student attendance then Attendance Management System, Library Management System, Hotel Management System, Bill Management System for Bills It is possible that you go to malls etc. They have a separate software for Bills are paid through. Isn't it? So These are some special purpose softwares. So let's understand the concept of software. Went? I have arrived. No doubt till here? Is it clearing? Are you getting clear? I Trying to finish the session too early on your part I will try. But from the start to your It has to be made till the end and if there is any doubt anywhere If so, keep asking. ok ma'am let me tell you about my friend Found out from. From zero to hero in IT Gave. OK, what can I become? ok please you Make videos of it. Son listen to it Almost videos of this type are available I saw the video of IT a long time ago. It has been uploaded. Ok? Zara Playlist Go in. Go to the playlist there IT's You will get the video. Ok? now come to the Next that is operating system. So An operating system question appears. Son is in the exam. operating system is What? There is a main program, a It is the interface that connects the user and the computer. Works in between. Ok? it is Acts as a link between user and Computer. What does it do? These computers are like It starts working from the moment it starts Does. Manages the hardware. The number of applications users need It also runs all the applications. Now What are the operating systems? Windows, Linux, Mac OS, Android, right? No, these are all operating systems. Right? Nowadays Linux and Mac Linux are on the boom. Is. Right? Now then let's talk about that What are the functions of an operating system? Of. This is very different. remember both The question comes from this slide. Function Manages operating system processes Manages memory, manages files manages devices, even It also provides security. Ok? The matter has come To understand? Come on, now how many types of operating Are there systems? So four types of operating We have explained the system here. Single User Operating system with one user at a time It works. which includes Microsoft's DOS disk operating system with command level We work at Pay. One user at a time You can run the command here. Talk On multiuser operating systems in which many Users can work at a time. So The Windows operating system you are currently using The system is a multi-user operating system. Ok? Multiple screens can be open Is. Multitasking, which involves doing one thing at a time You can perform more tasks than this. Value Look, you are watching my video right now. On the system. For some printing you The print is also given and somewhere else Songs or movies are also playing. slides You are also making it. access to the internet as well had been. All this work is going on simultaneously. So That operating system again Windows which is this It is capable of doing all the work. One It is a real time operating system. Real Time Operating System which immediately gives you Responds. When you work on the internet If you are doing it then you can do it in real time on the internet. If you want to run any process, If you want to perform any task then use it there It happens. Ok Let's move ahead. clear? Ok. Ma'am programming tool yes. We will come to Python now, the whole Python thing. The unit will do. List, String, Dictionary All the things. The session has just begun Is. My Friend The Film Isn't Over Yet. So Stay in the session. The number system has arrived Are. Meaning that the first chapter is over. First Whatever is important in the chapter, become How can those questions come up? I explained it. Did you understand it too? Ok. Now the number system which is in the second chapter It is given in your book that is binary Number system, octal number system, hexadecimal number system and with the same In your decimal number system. These four types There are number systems. Take care. That means the numbers you write are 1 2 3 4 You write any number. The numbers are so many Many numbers made from zero to nine digits All the numbers are here ma'am. So the internal system How do they convert? internally When you go into the system, that number How do conversions happen? So this is for him Number systems have been created. Number System What happens? Do you understand? Jin right now Also, some children should know about the number system. If you have any doubts in the chapter, they should all be cleared. Will go. Ok? Let's move on. Go ahead ma'am. Five subject Please explain the concept. Five subject I will also explain the concept. Don't worry. Tension Don't take it. Ok? You want to stay till the end, right? Come on, what does decimal mean? 10 Numbers meaning 0 to 9 starting from zero Will be. 0 1 2 3 4 5 6 7 8 9 those decimals It is a number system whose base is 10. Is. binary number system with base two In which only two numbers come. that is Zero and one bits. Ok? octal numbers system with base eight, with zero Two seven your numbers come. End Hexadecimal number system with base 16 It happens. In which zero to nine are numbers There are. But 10 11 12 13 14 15 what Do you have them? A to F character 10K comes to A 11 comes to B 12 comes to C 13 comes to D 14 comes for E and 15 comes for your F Okay, so after nine, 10, 11, 12, 13, 14, 15. Done, if you understand then from A to F You have characters. clear? Now this How do you do conversions in number systems? So the conversion we do here is careful. Understand. You can convert decimal to binary, decimal to Octa, Decimal to Hexadecimal Conversion You can do it. Do the same reciprocal also You can. Binary to decimal, right? binary to octal, binary to hexadecimal or Decimal to Binary, Decimal to Octal, Decimal to Hexadecimal. Total 16 such There are conversions we can do here. How many conversions? 16 Conv Conversions. Understanding Am I here? Ok? Is it clearing? Let us go, Let's move ahead. Now let's look at the convergence. Quickly finish the conversion do. Say logic gates and circuits are over. We will do it and then we will come to Python. Is No? So here we first understand From decimal. Understand carefully. First I will give you I am telling you all the conversions now. from decimal Binary. Ok? Decimal to Octal and Decimal to hexadecimal. Now what to do with these? Understand its trick. Understand the trick. When you convert from decimal to binary, octal, hexadecimal, then we Let's divide here. Whom do you divide Do you? You will divide by two in binary. In octal, you divide by eight. In hexadecimal, divide by 16 and The reminders you leave after dividing It comes while noting down that reminder. yes. If you note that reminder, then your That number is basically converted. Ok? How? Understand carefully. Very carefully. Suppose What are we doing here? from decimal Converting to binary. So two There are methods. The first method is to divide the number. Bye two. dividing a number by two Will go. The reminder that comes will be a reminder I will keep writing and noting it down. If the number is completely divisible then zero is left. Used to be. If the number is not divisible then Reminder One survives. and then whatever the answer If it comes, we write it from bottom to top. This is the method. Suppose 25 is given then What do you have to divide 25 by? From two. What do you want to convert it into, ma'am? decimal to Binary. So we will divide by two. Isn't it? How will you divide here? 2 * 1 = 2, 2 * 2 = 4 reminder What's left here? Forest. The complete division did not happen, ma'am. Then two Divide by. 2 * 6 = 12 this complete division Done. 2 * 3 = 6, this is also completely divisible Went. Ok? 2 * 1 = 2 here again one Will be saved. So this 1 1 0 1 is called recipril Write it in the order. That is 1 0 1 will be the The binary number of this 25. Got it? To understand Came? It is very easy. Is it clearing? just Give me a thumbs up and tell me that yes ma'am I am converting. I understand it. Quickly, quickly. Ok? Let us go. So this was a simple conversion. Binary to Decimal. Decimal to Binary. Now! If you want to convert decimal to octal then in place of to It will come at 8. Decimal to Hexadecimal If yes then 16 will come in place of two. That's it. That's all that needs to be done. Ok? Now decimal If you want to divide it into two octal, what will you divide it by? From et. Look, this is 83 divided by eight. To. Isn't it? 83 divided by 8 is 10 Save reminder. Divided 10 times. Reminder left three. Then we divide here do. Like if I divide you If I show it, we will divide by eight. Right? 8 * 1 = 8 and here these three as it It is. You won't do anything with three. 10 = 10 something something will go. Right? So reminder What will be left here? Three will survive. then from eight You will divide something into each one I'm going to tell you how to Will the divide be understood? Then 8 * 1 = 8 so There is nothing left here. here The reminder will be saved for you and this one as it Iz will come here. So 123 will be the answer. 123 What will happen to you? be an octal number Will go. And this was your decimal number. Got It? Did you understand? just like that if Will come in hexadecimal convert to decimal hexadecimal, so you divide by 16 Will have to. Did you understand? Otherwise you know Very well, that each decimal value There is some hexadecimal value. We can represent hexadecimal values ​​as three digits. We represent hexadecimal values ​​with four digits. represent if its table is made Yes, it is. Ok? Look at the decimal value, this is 10. Its hexadecimal value from to 15 The values ​​are A, B, C, D, E and F. it occurs. clear? Meaning if the number is zero So its hexadecimal number will be 0. forest is So 0 0 will be 1. If it is two then it will be 0 0 1 0. Ok? If it is three then it will be 0 0 1 1. This bus Take care. So, no matter how many number of tables you have You can make it. And I have used this trick before. I have told the children. That is 0 1 10 and 11. These are just these four combinations if you If you remember then no matter how many bits you have, You can make any number of tables. This Understand it well. Ok? Are you enjoying it? Are you enjoying the session? Understand all things Is it coming along well? It is being revised that No? Is it happening? Ok. Hi Anshika. Hi Son. Hi Moni. Hi Svalya Difference Write Do you want to write the difference? compiler Let me write down the difference between the interpreter. ok ok Ok ok. I will provide you the notes, son. The compiler executes the whole code in one go. The interpreter executes the code one by one. Ok? Compiler is fast and interpreter It is slow. C++ compiler is used. Python Interpreter is used. Ok? Ok? in Python language just this much is sufficient. clear? Well, now I understand this. What Want to remember? 0 1 10 and 11 That is. Bus You will remember this much, right son? You will remember this So assume that you will create the entire table ahead. Look, now if I take four, then in four What do you have to write? Zero. Now this zero Will you replace it with one? 0 1 0 ok? Then If you take five then 0 1 0 1 then if you take six then 0 1 1 0 and you will consume it, then in case of consumption What will come? Understand carefully. of intake 0 1 1 will come in the case, so look, this has come. Zero here comes one here comes 10 here comes 11 We just replaced this zero with this one. The numbers will continue to increase like this. After that, see, for 10, it will come for 11. for 12 this this basically its These are hexadecimal numbers, okay, move it forward. If we discuss it now, we will understand this much. Three conversions decimal to binary decimal to octal decimal to hexadecimal now increasing The opposite conversion from binary to decimal ok what did i explain ma'am decimal to binary, to decimal If you want to do binary, we can do it here. Divide by two. Ok? And now if you Same process has to be repeated. What is the plan? You have to repeat this same process. Now If you want to convert from binary to decimal, you can What will you do here? Understand carefully. If If you want to convert from binary to decimal, you can Here you will multiply by the power of two. Multiply by the power of two. multiply We will do it here. In its reverse conversion And the same thing in your binary space will be octal. in place of octal It will be hexadecimal. Ok? remember this trick Keep. In binary it will be two. Hexadecy In octal it will be 8. 16 in hexadecimal Will come. Ok? Let's move on. See what is written? In binary to decimal you can get here to We have to keep multiplying by the power of. For For example, I took a very big number. Took. I'll take a small number. Suppose 100 01 How will you do it? I am telling you a question. You will do the rest now. Its questions Will come. One or two questions will definitely come. In the exam because it is made from here. These 2 is to the power of zero. This is 2 to the power of 1, this is 2 power 2, this is 2 to the power 3 so this is two to the power I have your numbers. Ok? Understood Used to be? and these numbers along with We have to multiply and at the end we have to plus Is. So what is 2 to the power 0? Forest. Remember the power of any number is zero to one. It happens. 1 * 1 = 1 to the 2 power 1 2 0 2 4 4 0 2 3 is 8 * 1 = 8 right? give it a plus To all the numbers. 8 + 1 that is 9. 9 will be the Answer. So, who did it become? this binary Whose decimal number did you miss out on from the number, ma'am? It came out to be nine. So, same if question If you know how to convert to octal, Take eight instead of two. Hexadecimal If it comes in, then take 16. And this one more There is a way to solve it. octal and In hexadecimal. Now what is another way? Is? Listen. Ok? What is that other way? be careful Hear That's another way with a table. These Does everyone know how to make tables? Quick yes and no I answer. I know how to design this table Is. Just do it the way I taught you. Design table. Look here, three in octal. represent in bits and in four bits in hexadecimal Let's represent. what to write to zero Are you? 0 What are you writing to the forest? 0 1 Keep watching carefully. this one this 10 this 11 Then this zero got replaced here. These Zero is replaced by one, so 10010 111 ok? 1000 1000 1 Understood? 10 11 So remember 0 1 10 11. If you remember this Any number of digit tables in a jiffy You will make it. Ok? Did you understand? ok ok Okay very good. Look carefully how to make a table? One Understand it again. 0 1 2 3 4 5 6 7 8 and Nine. Understand this very carefully. us here Octal has to be taken in three digits. For how much? octal to three digits We will take it. So how is it in three digits? Do you take the numbers? representing zero It is in three digits. Isn't it? and to the forest Represented by one, two by 10, Three to 11. So be very careful, just this Understand the thing. 0 1 10 11. Now this zero You will replace it with one. This is the sequence Have to follow. This is the sequence you follow Have to do it. Ok? Replace it with one. So it comes to 1 0 0 4. Five will come to 10 1 six will come 1 1 0 will come 1 1 Got it? 0 1 10 11 0 1 10 11 Got It is becoming clear, I have understood till here So, here are your number sequences. Clear, look here, this has come, zero, this has come. One, this is 10, this is 11, so this is zero. Now if it's replaced by one here. This will be converted to hexadecimal, so 8 9 10 11 Just in four digits for 12 13 14 15 Make it, make it in four bits now Clearly, there is no doubt now Ma'am what is assembler, son what is assembler Assembler is an assembly language. To convert into machine language It is used. The languages ​​of the past Thi na like ferton pascal jo languages They used to contain code in assembly language. used to do. Now code in assembly language How do you do it? So the registers and memories It happens that we had to remember their names. Suppose register one R1 is taken. in this way Some mnemonics had codes that allowed us to Had to code by memorizing. his machine assembler to convert to language It was used. Which is not used nowadays. who are of the second, third, fourth, third generation Second generation computers there Assembler was used. Ok? Let's go binary Got two octals? an example It is given here. Look at these binary numbers. It has been given to us. 1 1 0 1 0 1 1 here How do you want to convert? Either you at Multiply it by the power of. Now he is a little Be hectic and a bit too calculative Will go. So what to do? Another way to do this It is that you make pairs of three. from behind Getting Started Pairing. Now here is a Only one digit is left, ma'am. What to do? So Put two zeros in front of it. So it became Pair of three. Now who owns one 0 1? So 0 1 is ma'am three. Ok? 1001 Whose does it happen to? Five's. and whose number is 01 It happens? Of decimal number one. So 153 will B. Octane. Very easy. Very easy. and its You can also do reciprocal. This number If it is given then write it as 0 1. Five Ko Write 1. Write three as 0 1 1. this is it Went binary to octal and this is octal Two binary. Very easy. I will tell you all now Conversions. Correct? Let's move ahead. Now binary To hexadecimal. It's the same thing. To you A table has to be created for four digits. which right now We made those four digits for three. For. And you have to do the same process for four. For. For example 100 0 1 0 0 1 0 0 1 0 Ok? Understand carefully. So if you have this This binary number needs to be converted to In hexadecimal, you get four numbers. You will have to make pairs of. These four numbers If it is not there after this then make it by adding three zeros Give. Now look, this is from the forest. This forest's Is. This is also from the forest. And who would have had 1001? Is? Five's. So here it is, yours. Hexadecimal number. Ok? Understood? Understand? Did you understand it well? Let's move forward They increase. Now let's look at the next conversion. That is octal to decimal. to octal if If you want to convert it to decimal, you will have to do the same. We have to move forward by multiplying with power. Who I told to the power of eight, suppose 3, 4, 5 is an octal number and we can convert it to decimal. Have to convert. So 3 4 5 8 to the power 0 8 to the power 1 8 to the power 2 This To multiply. Plus for the answer that comes Do it. So the answer is 229, right? 229 answers Will come. If you calculate this. Now octal to binary so the same conversion that I did I told you that the table method is easier than binary. It converts binary into number and number into binary. Suppose you can convert binary here If you give the number 75 then what happens to it? what about the number binary number 1 1 and five It is 1001 so this is its binary value. The number was octal and it is getting cleared like this If the question comes in the exam, son, then do it. I will have to come, right? Ok, okay, clear, let's go, hi. AK Gamer how are you son, have fun Are you all in? The next question is here. Hex to Decimal. Hexadecimal to Decimal Conversion has to be done. So look 2f what is this? ma'am is a hexadecimal number. decimalize this I have to do it. So what is the number of f? f has number 15. multiply this You will do 16 to the power of zero. plus to as it Iz will come. 16 to the power one here Multiply it. which by calculating The answer will be 47. So this will happen Your decimal. And the same if you have to Binary karna hai to binary to again same The table of binary numbers is in front of you. You can convert it from binary. So now the total number of conversions we saw If I look at the trick, this trick is conversion. Of. Understand this trick carefully. What Have you given the trick for conversion? this trick Remember this. binary to octal three bit Have to group. binary to hex four bit Have to do it. You have to group four bits. Converting Octal to Hex will be in binary first. then from binary Will convert to hex. This is a converter What you have to keep in mind is that octal Convert to hexadecimal. So You will convert from octal to binary first. Like for example we have octal The number is 23. This is an octal number. This You will convert it to binary first. So three What happens ma'am? It is of three Suppose 0 1 10 right? So we took this What happens to this and to? Two's number It happens to you basically if we talk So here its number is 0 1, right? This is your binary number. Now this Make groups of four. Look what Will you do it? You will group this into fours. Why four? Because now we have to use hexadecimal Have to convert into. So grouping of four Did it. Whose number is it now? and this Whose number is it? Hexadecimal Please tell me accordingly. that's over. This is the forest It is of Rs. 10 and this one is of Rs. 15 maybe. It means 10, right? Of 10. Meaning of 10 A. One A will be the answer. Did you understand this thing? If from Oct If it came in hex then first you need to convert it to binary Will have to convert. Ok? Let's go, this, this It's cleared. All conversions clear? just Give a thumbs up and tell me quickly. Converse Clear Did it happen or not? Converge all cleared? There is no doubt in convergence. You will do it. If it comes in the exam then you will do it. ok ok Ok ok. Ma'am class 12:30 super one shot. Just son, just have a little more patience. Is No? This week and next week for you guys It is complete. Ok? And I already Your schedule has been planned. Let us now come to Boolean logic and this Will give end to the unit. After this After Boolean logic, we will increase the second unit and before that we will take a small The break you've been waiting for. Ok? Ok. There is no doubt, right? Come on, very good. Now what is Boolean logic ma'am? So Listen carefully. Well, some number conversions. And there are some which are probably ASCII. One Take care. And there is a Unicode. Is No? What are ASCII and Unicode? These to convert characters Are. This is enough for you to understand. characters into bytes and so on are meant to be converted. Ok? Ask and Unicode. to convert the number For example, hexadecimal octal and all these would have been Are. So this converts the character. Done. Now let's talk about Boolean logic. It happens? Boolean means two values. Idar True and False. Tru means forest, falls Meaning zero. Ok? So the Boolean operators that There are three basic Boolean operators: Operators arrive. And or not. By the way Apart from this there are others also. AND and NOT There are other things too. Like Nand. Ok? He is male, aggressive and There is ignorance. These are also four. But We will talk about these four later. Joe Maine There are three, the main three are and and Not. What does end mean? and co show We do it through multiplication. means two The inputs you are giving are two inputs Multiplies happen at the end. and two inputs What adds and pluses are there? And In. Ok? And not means Reciprocal. Plus of minus, minus of minus Plus, one is zero, zero is one. True's Falls, True of Falls. Got it? So here a D. B means true if both the conditions are True. a + b means true if anyone is true. And it reverses the value. True to False And False to True. so and or not three There are basic Boolean logic gates. logic There are operators. If their truth tables Speaking of, this is the truth table, which You have to remember. Ok? What do you remember now Do you want to keep it, ma'am? dot means like I There is a told end which multiplies Is. So a dot b here if you're doing Input the values ​​you have taken on Values ​​are taken, this is 0 1 look there 0 1 10 and 11 are taken from the same. When both are zero If it is zero, then it gives zero. multiply This is what will happen if you do it. 0 * 1 = 0 1 0 1 1 = 1 Meaning both inputs are true. then it Returns true. Else it returns falls. Now we have to do plus and what does it mean? Plus to do. The inputs given here are 0 1 10 11 these will be plus. 0 + 0 0 + 1 1 + 0 1 1 + 1 are plus in binary So 1 + 1 is 1. So here if even one If any one of the inputs is true then it gives True Answer Else It Returns False. And now Look at the note, it is returning zero to one. One Pe Zero is returning. means this is Gaya your expon a opposite. Ok? complimentary Yes sir. ISC is double I ASCII, right? very good. Memorize their full forms Son. Unicode AS C Double I & ISC Double eye. Very good Swalia. Ok? Their Learn the full forms before you go. Done ok ma'am get the dot one solved also. So The one with dots is also easy, son. dotted There is not much problem in it. Bus Have to do it with minus. Look at one question one The doubt child has asked. 110001.1001 Get this solved. So here's your one. Binary numbers. Ok? We call this decimal Have to convert into. So when in decimal What do we do if we need to convert? ma'am? Multiply by the power of two. So in this you multiply 2 to the power of 0. You will do it here. What is multiplied here? Will we do it? to the minus power of two. Meaning 2 to the power -1, 2 to the power -2, 2 to the Power-3. You will multiply this by one. Then from zero. Ok? So this is in the minus here There will be multiplication and in the end everyone will get plus Do it. Understand? Understand? So this was a doubt Suman's. Ok? Sumangalam ok sorry Sumangalam right let's go So clear is the truth table now boolean Some properties of algebra are Question one comes 100% on Boolean Algebra The question of properties comes up, son. Mind it carefully okay Identity Law Then, the null law, the identity law, and some other laws. Look carefully at the complement law Commutative Law, Associative Law and then its After comes Demorgle's Theorem if I talk If I talk about identity law here, Identity law means if you a + 0 plus zero in any one of the inputs If you do this, you get the same input back. And if you enter any input from forest If you multiply, you get the same thing back. Input is received. And to prove this If it is there then I am telling you with a proof. Balance You should prove it all yourself. Ok? all this I have read it in detail. Suppose we have a There is input. That is true and false. And here What do we have? second input zero Is. What is the second input? Second Input It is zero. So what do you do with this? You do plus. If you plus this So when we plus this, then our True will come nearby. And when you do this If you multiply it, it will come back to us. What will you get from this? You will get the same number. Good There is a forest here. Isn't it? This is a forest. This Zero Yes, this is a forest. So what about back to us? will get? You will get the same number. Ise True Falls Don't take it. Ok? This is just a. This way understand. Look at the first input and the second input. In the first input we have a and in the second In the input we have zeros and ones. Now Have I asked you here? have asked you a + 0. If you do a + 0 then the answer will be b Again a and a.1 Answer will be again a because We just saw this in the end and end, so both What is the answer in this case? a only come Isn't it happening? You will know how to make a truth table. No? Come back after making a truth table. Ok? Tap What does the law say? Its opposite. to do a + 1 One will come. Doing a0 will give zero. Meaning Same reciprocal. Ok? Idenpotent Law What do you say? The Identical Law states that if If you do a + a then it will give a and aa If you do it, it will give you an eye again. I will prove the patent law. Understand carefully. Isn't it? If you Proof will have to be done from the truth table. They ask I am in the exam. Generally these two come in one number Let us ask you whether you can prove these losses. Do it and show it using the truth table. So how is the proof Will you do it? If we take the value of a here Lee what? a took the value of true and Falls. We have also calculated the value of the second a. What did you take here? True and False. Is No? Or you can calculate it according to your truth table. You make it, so take it that way. So now look here But if you do True True, then the answer will B. True. If you do false false then answer will B. Falls. I mean, you're taking it out here. What? You are taking out a + a. On doing plus The same answer is being generated back in front of you. Is. And what is this? a is the same as back which a The same value you took is being returned. Is. I understood ma'am? DeMorgan's Law. Exactly DeMorgan's Law Will do it too. Very good Anshika, what you have said The form is mentioned and its full forms are available. American Standard Code of Information Interchange. OK, DeMorgan's Law, just after that. Coming to DeMorgan's Law itself. So this law I understood it. Now what is complement law? He says? that if you convert a to a by inversion Along with its complement, add If you do it then the answer will be one. How? If I took a True and False and a D I took False and True. Because This will be its complement. And when this You get it plused when you plus If you do both then true falsehood will be What will happen? Meaning the same plus has to be done. Plus What happens in? One and Zero in Plus What happens? There is a forest. Isn't it? and zero And what is a forest? It happens again ma'am. So only one is being generated here. You See You can see that the forest is coming. Ok? Got It? Similarly, if you do it aa a time then The answer will be zero. Commutative Law Two Works on inputs. a + b = b + a a.b = b. This is the same thing as adding 2 + 4. Or do 4 + 2, the answer will be the same. Isn't it? So the commutative law and the distributive law It also comes in the exam. How will you do it? Understand carefully. Understand this very carefully. Its truth table also needs to be made. If How to prove a + b and b + a Will you do it? Take two inputs a and b. of both What could the value be? 0 0 1 1 0 and 1 1 This will be the value. If you have a + b If you do it then what will happen if you add the answer? Will you go? This will come when you click plus, ma'am. And Even if you do b + a, the answer will be the same. ma'am. Even if you plus b, the same result is coming out. So both the answers will be the same, right? This is Commutative. And what does the associative say? a Plus + b first. Then insert c into it Plus it or first add a + c Then plus b. The Answer Will Be Again Beans. Ok? Meaning do 2 + 4 + 5 or else first Add these two or add these two first Add it. Answer will be same similarly in Multiply two. In such cases only multiply It also happens. Ok? clear? Let us go. So these were some laws. Now, in addition to this, There are two or three lodges. that is Distributive Law, Double Negation Law and Absorption Law. In distributive law There are three variables. There are three inputs Are. A, B, C, right? Meaning we said a.b + c So what should be the answer to this? a.b + a.c Ok? Will you also prove this with the truth table? So just like I said but here You will have three tables. Take care. three in You will need to provide three inputs. 0 0 1 0 1 0 0 1 1 gives 1 0 0 1 1 0 gives 1 10 No? 0 1 1 0 1 1 0 and 1 1 so these three You basically have to prove this on the inputs. will be. Doing it will become proof. Be comfortable Will go. Ok? Just keep this in mind, this Will be done. It's not a big deal That ma'am, I am not able to do like this. Ok? Let's go after this double negation law. Double Negation What does the law say? Let me explain this. Look at one a You have taken it. If you You take the values ​​zero and one and iterate over it a bar If you take it out, what will come out once? Its Negation. And if you take out a double bar on this, Then its negation will be removed. So you pay attention Look at that which is a 0 1 and a double bar also so 0 The forest itself is coming. So a bar = a double times both The Things Are Equal. Ok? Hi Quick Concepts. Hi Devesh. Ma'am my doubt is five subjects Rule. Ok? Right now we will discuss five Subjects Rule. Last is absorption law. What is absorption law? a + a ≡ B And a.A + b this is absorption law. Correct Is? So these are some laws, remember them. You will have to cover all the laws once in one paper. Write it down and just recall it regularly. Keep doing it. And these laws are not even remembered. When you come to MCQs, you will have to remember You may read it or you may not remember it. So their If the question came to you for the truth table So this is how to do a truth table proof. It's easy. You will do it. Now DeMorgan's Theorem. DeMorgan's theorem, which you can learn from me about Now you are asking, don't give me DeMorgan's theorem. It is solved in this way. The first way would have been So you apply Boolean algebra. Another way is to use the truth table. Apply it. And this question is asked by most of the people The year is asked from the truth table only. So Try this from the truth table only. tell me this I will give it. Look a.b is this bar = a bar + b times. First we will take its LHS. Will solve it. Ok? 0 0 1 1 0 and 1 1 What will you do first? We solve its LHS do. So you will solve the LHS, that is, a.b We are multiplying here. If you are multiplying then this answer is coming Yes ma'am. Now you are taking out the negation on this. I mean, what are you doing with it? reciprocal What are you doing. So 1 1 0 came. Now, from different Solve this. So look at it once If you take it out, how much will it be a times? 1 1 How much will you get if you subtract 0 and b times? 1001 0 Now let's calculate a bar + b bar. in Both add value. So 1 1 0 1 0 1 1 and over here 0 0 okay? So these two Did the value become equal or not? Tell. Did you understand? Yes. Dulla Duality Principle It also happens. There is one, right? Duality Principle What do we do in and to and in Let's convert it. and in the end Let's convert it. Multiplying Plus We do. Multiply it to plus Are. Means like this. If I wrote here a.b So what would the Duality Principle say? a+ b This is Duality Principle. Conversion to do. Ok? Ma'am, the programs are not being made. Son You will also do programs, right? Why take tension had been? Ok? Understand? And you are the same Can also do proof for second demorgans yes. Isn't it? Same duality principle here It is being used. See. Ok? Beans The principal we are talking about here Swalia did it. Done. Let's move ahead. Now Apart from this, there would have been three more gates here. Are. That is Nand Gate, Nar Gate and Agjor Gate. How do you represent them? Nand gate means bar on a.b and male gate means a+b per bar and ejour gate means a in this manner A sign is filled and when is it true? When there are two different inputs. this are the Nand nor and exorget. Ok? But Most of your questions come about this. Now another topic arises here that is logic Gates. Understand that further. then for the exam We will focus on important topics and then Will start Python. What did I tell you? Logic gates. If you are given a topic Suppose DeMorgan gave the theorem. DeMorgan What is the theorem saying? bar at a.b and You have to prove this a lot at once. Like this way, right? We just now Look at DeMorgan's theorem. I gave him proof Also got it done. Look at this. Ok? So for now What do we have to do, ma'am? Something like this. Your plus will come here. Right? So its For this you have to make a logic circuit. So logic How will you make the circuit? Joe Logic for the End The circuit is for and for Understand carefully. Plus and dot for those who There is a logic circuit, you will understand it a little. You have to take care carefully. a logic circuit This happens. This is your end. And One happens to be something like this for the other. Is No? This is and and this is or. is for or Such a D type. From here you give inputs yes. Is it clearing well? and one more It happens to be a knot. Joe Logic Circuit for NOT Whatever happens, it happens this way. Ok? This becomes the logic circuit of AND NOT. Here You can make the logic circuit of NOT in this way You make it whatever is in the triangle. So Suppose if I have a logic circuit If you want to make it for A.B then I will give it here. I'll give you one input A and one input B. Now here it is. Who will I go to? and to and gate to to and gate Is going from. So here A.B is being formed. Ok? Now suppose I put a bar in it. Is. Meaning that a not gate will be installed. A and B Gave input. It connected to this. here One of yours will get it. What do you say? Not Gate. So this will be the bar of A.B. This A.B. Did you understand? These are some logic circuits. Whatever you have to do. Ma'am, if we start from zero You will pass. You will definitely pass. You will pass with very good marks, son. ma'am Negation Law. Yes. Also called Negation Law This. very good. Let go. Ok. Did you understand? Let's move ahead. So you will do this, right? if anyone If the logic circuit comes to convert Will you be able to do it or not? Tell me quickly. Yes and No I answer. Let me get its equation done. What? Let me get the equation done. Then we take a small Let's take a break. Suppose I gave here But x.y. Understand carefully. x.y plus i I'm writing one more thing here: x times + y Times. You have to create logic for this. Circuit. What do you want to make for this? Logic circuits. How will you make the logic for this? Circuit? Look carefully. a logic circuit I am telling you how to make it. You should come here first So two inputs have to be given x and y. Now this which There are two inputs, what are they? To all First you have to get this calculated. So you You will make a new end gate here. This End Gate What did you calculate from this? x dot y. Now You can see this bar on this. So this We'll put a knot here for the bar. Gate. And this is generated with the help of NOT gate Gone is your x dot y bar. Ok? Now attention keep this is an end gate if If you tie a knot in it, it is called We are Nand Gate. Isn't it? This is how you You can also do the show from here. This is also a way of It happens. It is called Nand Gate. Ok? Now See what is given after this? x times and y Times. So you will give it x times from here. x times I said it, right? So how will you give the value of x times? You? Like this way. It went x times. These Been here y times. So this came up x times. These y times have come. Now x times and y times are also Plus I have to do it ma'am. So x times and y times Have to do plus. So let's use it for plus What are we? and the gate. x times + y from the AND gate The bar became plus. Now you have to do both of these What does the statement have to do? plus getting it done Is. So getting these two statements plused Is. So both of them came out from another gate. Will go out. Did you understand? became Logic circuits. The logic circuit is complete. Correct Is? So if there is any question about logic circuit If you come, you will do it. Will you do it? Come on, let's go very Excellent. Now, from this first chapter, 10 Where will the number questions come from? Will you become a son? IPL will be asked From you. Input output device asked Will go. About hardware and software You may be asked. There may be a difference Is. Conversions may ask you. RAM ROM You can ask about the difference in their types. Control unit of arithmetic logical unit A question comes up. of cache memory The question comes. This is the important part That's what you have to remember. Then the Demorgons Theorems and convergences. Converse Which? Decimal to binary, binary to decimal. binary to octal hex and hex to Binary. The bullion laws I just mentioned How do you simplify them using the truth table? He comes and truth table and logic Circuits come. So now the truth table and You understand logic circuits well. Is. Ok? Understand? Let's start now From here we will do the second unit which is our You have a lot of weightage There is a unit. From where questions are made 45. Ok? As many children as there are now Children in this unit want ma'am we Score full marks. ma'am this unit Not a single question should be left out. Here programming questions that come from Everything should be done by us. So for now Share the session now and quickly Come to the session. Get to the session quickly Because now we're starting the second Unit 1: Computational and Programming Part 1 That is Python. and CS of class 12th Kids who have Python Week who also Python week is there, ninth grade students, whoever I want to learn Python programming language. Yes, everyone can come to this session. Ok Ma'am Ninth AI's Marathon Ninth AI Ninth IT Ninth CA Sabke Marathons are planned I am already available on the bus channel Get it, you will get a notification Subscribe to the channel, okay, yes, no. Exor we call these universal gates Okay, yes sir, its MCQs are available. Let's take a small break during the exam. A little break, a little break and then start again let's do unit two okay let's go Okay, okay, come back, let's go quickly, quickly. I said a short break, a short break. Isn't it just a small break, unit has arrived To start, do unit two. Start quickly and see the unit to that is Getting started with the Python programming language I am here and now and now the real blast will happen Isn't it okay, let us read the first chapter thoroughly. I understood ma'am, then the most in unit two The first chapter is given to you quickly. Come to the session, join the session quickly. Tell your friends quickly, quickly Break over happened suddenly, yes yes to 11th CS Are you ready to break the paper and come? Ready to crack 11th CS paper yes doubts no doubts ok ninth ai Marathon Ninth AI Marathon Already Planned Son, you have completed your ninth too soon. Marathons for IT, AI, CA will be same. Year AI will also be available, okay, Hi Nitik Hi Grow with Vansh Hi Anshika Raghav Hi P to Z Edits Swalia Samar Singh Dharampal KR Edits Hello son good evening ok come Go back to the session and see what we're talking about now. We are the first chapter in Unit Two. You've been given that is competitive thinking. Now all the doubts you may have about Python will be cleared. You will have solutions here one by one. We will cover all these things too. Quickly, okay, so now the computational Is it thinking as the name of this unit suggests? that of Computation Thinking and Programming. So what does computational thinking mean? Solving Problems Logically as a Computer Can understand it. Whatever problem you have You solve the problems given to you So that the computer can understand it. Ok? So We call this competitive thinking. Now It involves some steps, some Concept. First comes decomposition. if anyone You have been given a problem, a big problem. Yes, you have been given a big problem. If you have to solve it, then how to do it Will you solve it? You will decompose it. decompose Meaning, divide it into different parts. Will you take it? So let's make a big problem smaller. divide it into parts and then Let's try to solve it. This This is decomposition. The second one comes here Pattern Recognition. in pattern recognition What do we do? Finding Similarities And repeated ideas. Now what you have here Divided into small problems A big problem. then in the middle of You check the similarity. in the middle of it You try to create patterns. To solve the problem. What Is there any similarity? What are the differences? How Do you want to solve it? You learn that. And As smaller problems are solved If it goes then your problem will be solved automatically. It gets solved. Next is Obstruction. What is abstraction? Focusing Only An important detail. Whatever the problem You have been given only You have to focus on important details. It is not that all the things in the world You are carrying it together. only Focus on the important points. As Exam time is coming. The biggest problem What is it ma'am? Our ki at exam time How can we score 100 out of 100 marks in the paper? or even if it does not come to 100% then 98 95 96 Achieve it from. This will be everyone's target. Yes. Isn't it? There will be some children who 506 I also feel very happy that ma'am is a One night and one day of studying or watching a lecture Yours can we pass? So off You can have a course. pass with good marks You can. Isn't it? So here is your biggest This is the problem right now. So what is your focus? Should it be? It should be on that. Got it? So this is the same thing that happens in pattern recognition. and the same thing is happening in abstraction It is important that you only enter the important details. Pay point out is to be made. Arth Algorithm Design once you have decomposed the problem Done, pattern recognition done. Yours The entire focus is on your problem. His The solution is on. So now here you have him Trying to solve it step by step Will you do it? So this step by step solution Is no edge algorithm. This step by step What do we call the solution? Algorithm. Ok? Yes. Ma'am what about it? Well then IT The children have arrived. Son of IT The marathons have already started. Hopefully you have solved most important MCQs assignment Reese would have seen it. Isn't it? IT's Have started. Ok? Let's move ahead. Now what are algorithms? a question comes to algorithms. a question Algorithms and flow charts come along. Is. Take care. So if we talk about algorithms Do the algorithm step by step There is a procedure for any problem To solve. For example, any problem Is there. Suppose I said here that you Two numbers have to be added. Add two numbers Have to do it. So to add two numbers What would you do? First of all, we have There will be numbers, ma'am. You will need numbers. When You will get two numbers, then You will get both the numbers added and its The answer will be generated. So similarly we Here's how to solve it in a few steps: will be. So first step input numbers. You You will take two numbers as input from the user. input After it happens, you will process it. You will process those two numbers, means you You will get it added. Suppose we take numbers a and b, then we We are adding that. Now as soon as you add So what will you get? get the result Will go. So in three steps we have done this process Solved the. solve this problem Did. So what is an algorithm? Step By step procedure. It's not like you were the first You got the result from there itself. Did this happen? You can add your number without taking the number. Took. We followed each step here. Is. So there should be finite steps. First Its feature is the number of steps There shouldn't be too many. Finite Number of steps 8 10 15 20 like this isn't it Clear and Agnes as many steps as you All that you are writing is clear and unambiguous. It should be means it should not be repeated Ambiguity means duplicate or repeated. Shouldn't be okay now has input and Every algorithm has input and output The output should also be end-effective end How is this logical algorithm designed? Should be in an effective and logical way Generate Result So These Are The Characteristics of algorithm that whenever If you make an algorithm, then all these things should be included in it. things you get to see and all these We have to define the thing necessarily. Now the algorithm to add two numbers Look carefully what did you do? First of all we Started the algorithm. Input A and B add a and B and assign it to the sum Took. Got the sum displayed and Stopped the algorithm. So total four Here are the five steps we followed. Understanding Am I here? Yes. Unique solution, isn't it? talk Did you understand? Okay ma'am? Universal Gates R Nand Nar Gate. Yes son, Universal Gates Nandas are only males. Ok? Now these and If you want to see in detail then I have A dedicated video has been made for this Already of logic gates and circuits. Correct Is? Go and watch that video. then from Whatever other doubts you may have, right? Practical means questions etc. from it also I have told you that you understand it too. Will go. Ok? Did you understand this much? algorithm Is it clearing? Now a question You will be able to create algorithms and flow charts. So algorithms can give you anything. I also asked him a question. Now come to the next That is the flow chart. So the algorithm which steps The graphical information of what you wrote step by step There is representation, that is flow. chart. Flow Chart Is the Graphical Representation. Flow Chart Is a Diagram of algorithms that we can use in some symbols Let's design. Now what would those symbols be? Are? What are those symbols, son? They Symbols are your oval symbols, those which Indicates the start and stop steps. What does the rectangle represent? Processing denotes. Diamond Symbol Decision Tells. Arrows indicate the flow of data. flow of control and parallelogram which Describes inputs and outputs. which we just now If we saw a program with one edition, we Make it into a flow chart, so look here. First, you will start at the oval. What should I tell you after starting? Is? You have to take input from the user. So the input What is the output used for? Parallelogram. Ok? Parallelogram Uses It is happening. Isn't it? For input output. So this is how you use parallelogram Will you do it? where you took input from the user to A and B. Ok? Then the processing What is it used for? Rectangle box. Rectangle is used for processing The box in which we calculate C = A + B Have been. Then if you want output, output For this you can use parallelogram and You get it written in it, print C C C Print the value. Then end it. Is No? Stop or end this process To. So this is a flow chart. if anyone If there is a decision box, you can find it here. You show it in diamond shape. Correct Is? Is it clear? Ok? Let's move ahead. Let's next given Here's an introduction to Python. now so much So there was your flow chart and algorithm. Part. If you get the steps then write them down. Come. Related to computational thinking These are the steps. Is all this clear? If any software has to be developed then its For this, first of all you have to solve the bigger problem. It has to be divided. Requirement Search Have to do it. The pattern has to be matched. Then you will have to focusfully take a step by step The solution has to be defined. algorithm What happens? I understood this too, ma'am. Example Got it with. question came in the exam So you will come back after writing it like this. When the features come Come back after writing the features. When the definition came Come back with the definition written down. Isn't it? an example If you give it then come back with a written example. flow What is a chart? Let us ask this. What are the symbols? whose which What does it mean? Make a flow chart and tell me Give it to me and come back after writing this. Well, asked this He goes and comes in number one or two. Almost comes a question related to flow chart. Too. But the question that comes up is important. From this unit, he can learn Python in 45 marks. Questions come. So starting now It is of Python. Python Programming Is it a language? So ma'am Python is a Interpreted Language, High Level Language Yes, it is an easy to learn language. These of Python There are some features. Apart from this, more Python There are also features. This is very famous Is. It is platform independent It is language. Isn't it? Platform It is an independent language. who developed it Did you do it? Python by Guido von Rozum. Developed by Guido von Rozum. and this The name of the language is a in the BBC show in the BBC show Joe The Montecarlo Python is the Montecarlo Python It was named after him. On the BBC show a character named Montecarlo Python Was. It was named after him. Correct Is? Now the second thing was that it was developed in the 90s. This language has been lost. Who developed it Is? By Guidomonrajam. And he named this Why was it kept? Because they speak their language wanted to name it Mysterious. This On the basis of which language was the language created? Has gone? So modula three and ab c in two Code of this language on the basis of language Designed. Now high level language Why is it? Because the user is understandable. Whatever code you write in your language Will you write? will be converted into machine language For which interpreter will be used. so that's why This is called interpreted language. Easy Why is To Learn? Because you are your Write the code in the language you want to write. You can. Too much syntax here It is not followed. Like C, C++, Java Syntactically it is a language. a lot of it There are syntaxes. Isn't it? Here the lace There are syntaxes. That's why it is easy to learn. Every user understands it easily. Platform Why do you call it independent? Because ma'am You can use it online. This you Windows Pay, Apple Pay, iOS Pay, any You can run on software, on Android You can also run. That's why this platform Is independent. Ok? what is its use Is? So it has a lot of features. Simple Syntax is good, portable language, open There is a source. Its source code is openly available It happens. The source code is openly available Is. Meaning you have seen every single Python New versions come out every two to three months. Are. If you have experience, your If you know programming language then you can You can launch a new version by changing the code. yes. Because its source code is free of cost It is available and along with it, this multiple Supports programming styles. There are a lot of packages, a lot of There are libraries that are basically in Python Used to create databases, data For analysis. Isn't it? AI also in Python Only programming is used. Ok? Did you understand? So if from Python If you get any related question, write it here. Come, I explained what Python is. Is? What are its features? who developed Have you done it? When was it developed? in what name It was named Python? Which one Is it based on language? this type of Question 100% Will Come in Your Exam. splash Have already done. Write it down. this question It has been published in your paper. I don't understand ma'am I am coming son. Didn't you understand Himanshu? Just type your comment again. what what Did you not understand? Yes. Yes. Of Course Python is a case sensitive language. means that If you write print PRINT This is correct in small quantities and if you drink If you write it in capital, it will be incorrect. Python is case sensitive. very good. Correct Is? Hi Usha. Ok. Let's move ahead. Good algorithm is Language independent. Yes yes. So now the GUI is also given here. Supports Python. Graphical User to the interface. very good. very nice. Isn't it? Now what are tokens in Python? These Understand carefully. In Python, if we use tokens Let's talk about. Now learning to code in Python Are. Children who understand Python code If he doesn't come here, he should understand. in python Whatever code you are writing, every Each word of a code has a different meaning. Which is called tokens. So token is Smallest unit in a program. While creating a program, the smallest unit Whatever happens is called token. Now these tokens There are different types. that is Keywords, Identifiers, Literals, Operators and Punctuators. What are they? Keywords, Identifiers, Literals, Punctuators and Operators. take a quick look The number of new children who are joining now, Share the session because we are using Python Studying programming languages. Is No? Python itself is very important. And all the questions come from here. Ma'am, please tell me back the rectangle one. See What does rectangle mean? be careful understand. This is a rectangle in which processing it occurs. The actual processing that is taking place It comes in a rectangle. input Output Come to your parallelogram. Ok? Let go. So what do we understand now? tokens I have arrived here. Right? What's in the tokens Will he come? Keywords that are fixed and There are reserved words. Like I just now said print, input and your if, else, loop The words you put in what you use Ho break, continue, else all these are reserved There are words. You can code these in your own way. You cannot use it. This is already Python is defined in. Their meaning is defined. Ok? be used for a specific purpose Used to be. The second are identifiers. You can name any variable, any Class name, function name, anything You write. User-defined name that you type Those are called identifiers. Identifier There are some rules which we will read now. Literals. What are literals? Who Constant value is a fixed value which you can have as numeric literals, Can be string literals, floats Can contain literals. Ok? Like hello, 3.1,4,10 are some of the values ​​that We assign them to variables There are literals. What are the operators now? Are? Whatever operation you want performed Is. Like plus, minus into division, right? Greater than less than the operation you Those who want to get the performance done have become operators. Correct Is? Operators who pay values ​​applicable There are. What are punctuators? Punctuation means full stop brackets, Curly brackets and your squares the brackets you're using, colon, semi Comma, colon. These are all the punqueters. Means If I talk, you will speak in English. If you write a sentence then in English Write the sentence like this You wrote How Are You? like you like this You write, right? I am telling you a simple thing. So what did you use here? exclamatory Mark, question mark, right? And these are one by one Word has its own meaning that there is a tense And in which tense have you written the sentence? What is your name? Isn't it? What is the verb in it? What is the pronoun in it? exactly the same One thing to keep in mind while writing code in Python Identify which is the keyword? Which is the identifier? What is Literal? What is an operator? What is a punctuator? Done? Did you understand? So these are the tokens. If The question came that how many types of tokens are there? So come and write this down. This is also in MCQs. Comes. What are tokens? So the smallest Unit in a Program. Done. ok ma'am your Teaching is very well. Thank you so much son. Son, let me tell you the limitations of Python. So What are the limitations of Python? Python The limitations of this are that sometimes it Is the slowest language. Why? Because if If we compare it with CC+ Java then it Slow language becomes little bit. Is No? Because interpreter is used here going. Here we use the compiler Are not doing it. If we compare it with Java If you do, it contains laser libraries. But languages ​​like Java or C++ There are more libraries in Isn't it? So some little limitations are there but More advantages are here. Ok? Java C++ It has more advantages comparatively than Are. But its limitations are less. Ok? Understand? If you encounter limitations, please write them down. You can do it in the exam, right? ma'am? Floor What is a divisor? I am coming just now. Floor divs are also coming on. Floor Division is an operator that can only Returns the integer value to divide by After. The content that comes, about that content Returns an integer. decimal part Does not return. I will explain now. Ok ma'am I am Paridhi. Ok. Hello perimeter. Is No? This is called floor division. Ok? I will understand now. Now look at the words What happened? Reserved words whose special Meaning in Python. Like If Else, Elif, Hu, While, True, False, None, Break. True, False and None are these three In which the first letter is capital. Mistake Also, don't write 'true' like this. Isn't it? This will be wrong. t in tru in t The Capitol arrives. Otherwise an error will occur. Correct Is? and any identifier, basically a keyword You should never use keywords as an identifier. You can't do it. So the identifier is What? Which are naming rules. like you You generate your ID password, anything When you write, what rule do you tell in it? That It should not start with a number. it must Start with letter and underscore. Isn't it? These Anything that contains a letter or digit And the underscore will come. No more colons this way You cannot use any other sign than this. Underscore will appear only if space is used If you want to give then it cannot start with a digit It will not start with a number. any space It will not be allowed. Use of any special symbols Will not done. Accept underscore. like for Example, total marks are written here. So I put an underscore for the total space. and Marx. This is correct. and it is written here Suppose I name it in this manner. So this is wrong Done. Meaning you have written 2 3 4 A B C. So this is wrong. Does not start with a number will be. If I wrote this down, student and If you write the name after putting a dot then the dot will not appear. Or if you give a space here then there is no space. Will come. This is wrong. Ok? These MCQs Let me ask you. So identifiers What rules have become? If this is in number two The question has come: what are the rules for? Identifiers? So what will you tell me son? You will come back after telling this. Ok? I understood it Well? Ok? Come to the next topic that Is variables. What are the variables now? So variables are those that represent the data. Are storing. what are variables which store data. Done. Now! Storing data means what? To you Whatever data is needed for processing That data will come in Python programming From where? Store it somewhere It will have to be done. So whatever data you You store it in a variable. This one There is character. Any string can be Can. It could be any name. like for For example, I wrote x = 10, so this 10 There is data. is a value of type Number Which we store in this variable named x Getting it done. So what does the variable do? Stores the value. Suppose someone's I need a name in programming so I Suppose the name is written here Ram and this name We have stored it in a variable called name. In. So these are the variables. Now in actual Going to the memory where this value is stored The memory where the name of Ram is stored You can call this name by name We will access this variable from this variable will access this this value this is the value somewhere in memory It has gone to the store. It also has an address which is in binary number Address approx. Ok? I understood it well From? Now x = 10 is the integer value we assigned Got it done. Ria in the x variable and we have a Got it assigned in the name. So Python is Dynamically typed. No Need to Declare Data type. Now let's not go here like we should What do you do in C or C++? This way From int X = 10 we say that brother is this X In we have assigned integer value. So We need to write some data type like this. It does not happen because it is dynamically It is typed. Specifying data types in Python There is no need. Now a question that It might be coming to your mind that MAME data type What happens? You just talked about data types. Did. So the things you write Whatever you are using in Python code, each one Value is of some type or the other. And That is called data type. Ok? To understand Are you coming? The data type is clear, right? What It happens? Ok? Now, let's look at the data types. How many types of data types are there? Very Understand carefully. If I talk about data of types so if you write integer value If you are using, the data type is int. if you If you write a decimal value, it becomes a float. The data of type comes in values. If You are writing someone's name, some characters If you are writing then it comes in string. If you write numbers in some sequence Suppose a student has marks in five subjects. If you write the marks together then it will come in the list. goes. Isn't it? role of a student The number and his name are written. So you here Identify the child's name from the payroll number. had been. His contact number, his details Are you recognizing me? So it appears in the dictionary. In which mapping takes place. Ok? there if You want to make a list that will be If you cannot change it then it becomes a tuple. There are sets in which you can compare values. Do you store collections? And there is one Boolean values ​​that return true and false Are. So in total there are so many types of data There are types. Integer, Floating String, List, Dictionary, Tuple, Sets End Bullions. Ok? If we take the integer Talking about it, look, there are three, 300, 200, right? Positive, negative, whole numbers, all these would come Are. And if we talk about decimal numbers Which is called float, 2.3 4.6 etc. Will go. And let's talk about strings Hello to the characters, right? in this way You name whatever string you give. One thing to keep in mind is the string If you have written 40 then this is a number Is. If you write this in double inverted If you give it, it becomes a string. So Always single or double inverted string It is written inside. Ok? then his Whatever is inside, whatever character, There should be a number, there should be a name. Unordered Keys Let's talk about the key and value pair here. So that is a dictionary. Look here my and its value in this way we can calculate Let's define a value pair. Ok? And if we talk about tuple, then tuple is a is an immutable sequence in which the You cannot change the values ​​you have written. You can. The value of the immutable type It happens. Once it is created. List is of mutable type. Ok? Whose values ​​you can change. Define it with square brackets. And If we talk about logical value then here Returns True and False. So if its chart If you want to create a data type then do this in this way. You can make it and come. Look at the number Integer comes. Complex Number aa goes and floating numbers come. Used for dictionary mapping Boolean sets and sequences. come in sequence There goes your string list and tuple. Memory Keep. Numbers include Integer, Complex, Float and string, list and tuple in sequence Which we will read further now. Isn't it? as many as Your doubts will be from string list, tuple All those related issues will also be solved now. You don't need to worry right now. Ok? Let's move ahead. Now what next? Has it happened? Further information is given to you here Type convert. There is a lot of confusion in this, ma'am. What is this type conversion after all? Understand carefully. What is type conversion? Is? There are two types of converts that are available in Python. are in. The first is an impulse Converse. The second is an explorer Converse. Have you heard of Implicit? Explicit convergence? Tell. Have you heard it? Hello Sakshi. Have you heard of Implicit Explicit Converge? Implicit conversion automatically in Python It happens. You don't need to tell Integer in Python programming convert it to float, float Convert to integer. This automatically It happens implicitly. Isn't it? interpreter It does this implicitly. So that conversion Which happens automatically in Python. It happens implicitly. Like if I had 5+ Wrote 2.0. Now understand this carefully. Five what Is it ma'am? Five is an integer value and 2.0 is a float type value. now here What will be the answer? You need to change this Not there. It automatically converts integer and float values ​​to integers. The answer to two different types of values It will come automatically, 7.0 will come. Ok? So this implicit conversion happened automatically. Is. It happened inside. Now if any conversion you If you want to do it yourself then do it explicitly. It is called conversion. which we type Also known as casting. Now here But what will you do? Use of different functions Will you do it? Some are built-in functions. Like for example, there is a number or some It is a string, you need to convert it to an int. Have to do it. Suppose I wrote here double in double Five in inverted commas. kiss this to me Do you want to convert it into? In integer. This right now What is it? It's like a string right now, ma'am. And we have to convert this into integer. So what will we do? There is an int called We will put a function and put this string in it. I will pass it. So whatever its value Integer is whatever the value of the string is. In this Integer. So how did these five come now? Will you go? It will come this way. This is just double Inverted has Edge a String showing. So you can convert from integer to string. You can. Float to Integer, Integer to You can convert it to float. Ok? and this How can we do the conversion here? Are. Ok? So something for conversion There are functions like int, float and str We use these. Ok? Let's go then Do you understand Python? I am enjoying it Are you not coming to the session? Just a thumbs up Give it to me and tell me quickly. Quickly. any doubt Even here? Even in No Doubt Tokens, In identifiers, in keywords? No No? Is it clear? Understand type casting Went? Got type conversion? Now! Type casting and conversion equations Comes. So which functions took place? int, STR and FLOAT. I will remember to type In Explicit Conversion. Now in Python There are also some operators. So ma'am What are operators? Understand carefully. Ok? Give me a thumbs up and tell me if you enjoyed it. Is it in session or not? understand everything Is it coming in clearly? Isn't it? be revised It's been going great. He who does not come You are also understanding it, right? Operators now What are they? Five to six types Operators are used in Python. First Operator, now look, I've got all the If you have taken things into your mind Is there any question coming that Ma'am, this is not it? What happened did not happen, this was missed, that was missed I covered all those topics in today's session. that appear in the paper, of which You must compulsorily read as much as the paper becomes I have to read it only. Isn't it? If you have complete If you want to get marks then this is what I say Is it getting clear well? From here Most of the questions come in the paper. Almost coming. What are arithmetic operators? Are there? In which we calculate anything which is used for calculations Is. Ok? very good. No doubt ma'am. What The thing is? awesome awesome. Isn't it? Let us go. So What happened to your arithmetic operators? Plus minus into divide modulus double slash which is called floor divis and Exponentiation. a question from here which also comes in viva which They ask practically as well as theoretically. They ask. What does Now Plus do? number two If we add 20 + 30 then the answer will be B 50.5 Default Answer Here Which one does he come in? Comes in float only. The output you get is the default output. The output is obtained in float. means if If I write 20 + 30 then the answer will not be 50. 50.0 So here you are getting the integers plus Yes, but the answer will be in float. Attention Keep. Ok? because the default output will B in float. Interpreter default float I give. In subtraction you add two numbers Even if you subtract the answer is yours It will come in float only. Like 40 - 20 then 20 Came. If you use multiplication then 30 * You will write 2. Take care to tell about multiplication I have been. Single to Multiplication Star is used. The answer will be 60.0 Got it? Now there is another operator that is Double star. double star means Calculating exponentiation powers. If I wrote here 30 double stars 2 then the What will be the answer? of a double star What does it mean? Double Star Your Power I will calculate it and give it to you. So here it is 30 Power 2 Means What? Answer Will Be 900.0 Got How much will it answer? 900 to single Star is used for multiply double star Is used for calculating power. Now another one The thing that needs to be mentioned here is that your Slash and double slash with doubt. Attention Understand from this. Slash means div. Slash Meaning Divis. What will Joe return? Kashhunt. What Will you return it? Kashhunt. For example, I Written here 5 / 2 Then the answer will be what? Tell me quickly. If I write 5/2 then what will be the answer? Will you go? Brother, the answer will come ma'am. When to If you divide by five, the current will be here. What will be left? Question will be saved ma'am 2.5 Obviously this will survive. If I here Written 5 double dash to then answer will be double What would the dash mean? There will be division. Kashent will also come but from here only and What will be the just returns? Integer part. No decimal parts. So this floor division What do you call this? you call this Floor Div. Floor Divide Returns Only integer part of quotient after dividing and subtracting Single single slash div returns the cushy with the decimal which is its default type Is. Now one more that is percentage. This You say modulus. what does it return Is? This returns the reminder. What Does it return? Modulus. Reminder, right? What is the matter. very nice. The answer has come. Come on, come on, if you understand then this is a Our grand finale is going well Isn't it the final for class 11th CS students? Quick complete revision of Class Final CS Isn't it Kartik, okay Swalia Yashika Mamta Correct answer son, it is very good, let's go. So here the modulus will be written, meaning when you If you divide five by two, you get Only one reminder will remain, any of these three I have no doubt, I understood it well. There is a lot of confusion in this, children. They get confused and the teacher gets confused too. when questions are asked of you If it is in the exam then there will be confusion here. goes. Isn't it? Let us now move on to relational operators. There are what are called comparison operators. What are these in comparison operator? Greater than, less than, equals to, double Equals to means double equals to and not Equals to, Greater, Less Equal and Less Equal. Ok? what are these called Operator? Relational operators that return true and Returns the answer value in False. So the relational operator returns only true, False value. Compare both the values Will be done. What the Answer Is True and If it falls, it will return it. for example If we talk about grater then five grater If thanToMe is true then return true. Five less than true false would be ma'am five then It is never smaller than two. Five is equal Two to no 5 equal to five only. So that is Why keep in mind that if you want to check equality then We write double equal. And when you If you check equality in mathematics You use single equal. Isn't it? But If you want to check equality here, double It is used equally. Single equal for what? Is it used? Then why use single equal? Tell me does it happen? If you want to check equality So we're using double equals here. Are. So ma'am then why use single equal It happens? We have also mentioned this somewhere Have you seen its use in programming? Let us go Tell. Tell us quickly in the comment section. Why use single equals? Isn't it? I will come to that also soon. For Not Equal What? In mathematics, for not equal we use They use this sign. Not equal here What do you use for? exclamatory Marker is equals two. Meaning five double Equals to five returns true. and five Not equals to five returns false. Got It? Ok. Single equal is used to assign. Very Good. Isn't it? Single Equal Value Assign Does. Suppose a = 10 is written then a contains 10 The value will be assigned. Single Equals Is Used to assign. Double Equal Is Used To check equality. This is the difference. These The question comes in the exam. Ok? Let us go. So Now from here your conceptual questions It will become clear. And Greater Equals Less The equal is clear, the same as what we have just said. Saw the equals two thing. Now Logical Operators are also a type of operators. Are. That is and and and and not. Now this It is important to understand this carefully because Its questions will come in the exam. not this I will ask you. Never ask direct questions will define operators and types of Operators. Will I ask you? Its Practice questions. How are those questions Are there? Practical questions in which Operator presence has to be supplied. I will tell you that now. I will tell you before leaving. No tension Take. Isn't it? See. so and or not three are logical operators. which we just now Tell me, if you look at it logically, what happens is that True only if both end conditions are true returns because multiply and if even one condition is true then true will return because edition does and NOT reverses the result to TRUE True of Falls Falls. See the example Is it written? 5 > 2 condition will be true. Ok? 10 > 3 condition will be true. End Have put. What does end do? Both are true There are. So the answer will be true. View more 5 > 2nd condition will be true 10 less < 3rd condition will be falls and what does and if a If it is also true then it will return true ma'am So true and false, one is true, right? This returns True when this False will return OK when both are false Now it is written 5 > True condition will be True, but if it is applied on this, then not What is this returning true because of the notch? Falls is returning Got it Understood Here comes the logical operator clear precedence. Yes of course, now we are coming to the presidency. Yes, and we will also ask questions about it. Ok? I will also tell you how to answer the President's questions. Have to solve it. because the president Children get the questions wrong and come back Presidency questions in your paper Have been printed. Accept it. Ok? Assume this To the point. The question keeps coming. would now is the assignment operator. assignment operator What happened? Like I just said We assign through equals. Suppose I wrote a = 10 so a space in memory It will be created where there will be 10 stores and We will identify it with a. Meaning You assigned a value of 10 to a Gave. Now if I talk about plus here So what does equal mean? Plus Equals means it is an assignment operator. Which adds and assigns the value. This way Just for example, if I wrote here a = 10 and if I write it this way I will give it. How do I write it? a+ 1 What did I write? a += 1 so now a What is the value, son? It is 10. So its This means a = a + 1 means 10 + 1 in 10 + will be 1 and what will be the new value of a now Will you go? 11. What will be the new value of a? 11. So what is a + equal doing? whatever You will write the value here, from that to that Incrementing the value and setting it to the same Assigns a value to a variable. This Is plus equal to that in the same variable itself Assign the value. By adding, Subtract, divide, multiply By doing. So, these are all assignment operators. It is not like that only edition does Is. It also performs subtraction. It does multiplication as well as division. Is. So divide equals, minus equals, star Equal, percentage equal, all these are used Are. Done? Did you understand? Ok. What 11 Son? Ma'am, error, correction, rewrite the code. Yes. These These questions will also come and for this there will be a separate I will also bring a session in which Saraent There will be questions. predict the output, Correct the error. It's just the beginning We. Have some patience. Ok? Let us go What are membership operators? Membership operators are your in- and out-of-the-box services. Not in. These also have dangerous uses. Used in the list. Use in string There are. There are uses in the dictionary. every These membership operators are used instead. Now! If you read further about string list and dictionary We will use the membership there. Ok? ma'am See a question of plus equal plus I just told you the question of equal. like I Here it is written that a = 10. Correct Is? What do we do now? like this for Example, we need to increment its value. Have to get it done. Ok? So we value it I want to get an increment. So for a in range Suppose you have to get the numbers printed by 20th Plus getting it done. And if you write a then that What will happen in itself? get a print If you take it then number 10 11 12 in itself Will 13 14 15 happen or not? Will you go? Will it be done? what is in the while loop Let's do this with plus equals. If I wrote here a = a + 1 so what happens Will you go here? 10 + 1 that is 11. a's new The value became 11. Done. So similarly you are here What can you do? With the help of plus equal Adding a value to the same variable You can. In the code like this, if you look here Pe use karte ho while loop na to while loop I will not use this. in a while loop You can use plus equal for increment. Will you do it? Ok? Did you understand? Understood Went? If there is a program for factorial then There is minus equal use. when you If you want to print the natural number then there Plus equal is used. where you Add-ons have to be done from each number To the numbers. Isn't it? Let's come now Membership Operator Pay. In not in. If these If I talk about not in, then in returns true. Does. When a value is found in the sequence So true. When the value is not in the sequence If it is found then it will give false. Now not in What will he do? Its reciprocal will work. When the value is not found in the sequence So true. And what you get is falls. To understand Came? If you can't find it then it falls. Isn't it? Now Look, suppose I wrote capital A here. Apple. What is the A in this Apple string? A in Apple. This A is a single A character. What is available in this Apple? What is it? Yes then it returns true. If I here It was written on it, Z in Apple. Apple String What Z is in? If not, then it falls Would return. See here what is similar Is it written? Z not in Apple. Now put Not In If given then what will not in do? If the value If not, it will return true. So yes Z Is not in Apple. So that's why it Returns true. Similarly, this is also in the list It is used son and is also used in the dictionary. It happens. Ok? It is well understood From? Now this has some key points. Attention Keep. These are just true lies Returns the value. Case Sensitivity Does it happen here? If you pay small A check here If you do this, it will return false. Suppose I said small A in capital Apple. Correct Is? So this will return false. Because Small A and Capital A is different. Now The corresponding values ​​of these keys in the dictionary will check if a key is in the dictionary There is value or there is not. of value Check according to keys not according to Will do. So these are some key points to keep in mind Have to keep it. Now we have increased operator presence towards which there are a lot of questions You are doubtful. very nice Swalia Yash Yash Kirti very nice son. Isn't it? Ok? Let's look at operator presence. If we talk about operator presidency What comes? Understand carefully. Operators All these operators that we have seen so far There is a sequence, there is a precedence in which they are executed. The interpreter in Python is Interpreter in particular as many Operators are arranged in sequence Executes. the highest There is a presidency of brackets. Badmas Have you read the rule in Maths that brackets are the biggest? Will be solved first. whatever is in the Solve the same inside the bracket first will be. Suppose I wrote here two + 3 and then I put a star and wrote five. So even though this Star's presidency is very high, plus But this bracket has more than The presidency will be even more than that. So the most The highest presidency is of the bracket. Highest precedence of your parentheses which is in left to right order here This is the order from left to right. In this It gets executed. double star which is Exponentiation in right to left order It executes in. and second highest The presidency is of the double star. come again Your multiply divide goes here And after Percentage Double Star. Then comes Plus minus then comes your left shift Right Shift then comes your bitwise end And and not are also bitwise three operators. They do exist, but they don't come generally. Question then is is not and not and not In that is membership operators okay and its Next come your relational operators then Then come the logical operators NOT AND AND and state three logical operators AND and And not not has the highest presidency Then there is the presidency of the end, then so on and so forth. The knot is at the top, then the end, then this Remember the sequence when the question asks you to If they ask, you have to remember this sequence. will have to do then if else then after this In the lowest presidency, we When they reach there, all the operators go left to Right executions are excepted to operators which exponentiation attention Keep the exponential right to The left goes in the order that is right to left This thing just gets executed in order. You have to keep in mind that okay so here comes the answer What's the point of this question? Look great 2 + 3 5 and 5 * 5 25 Yes Very Good ma'am is and is not operator listen. Izh and What do the Is Not operators even do? This only Let's do the checking. But it checks the address we do that at that address in the memory Whether the value is available or not. if he There is a value at that memory address. Is true if the memory address matches Returns. Otherwise It Is Not Falls Returns. So in and not in values Pay works. Is and Is Not Address Pay It works. At the memory address. This is the Difference only. Ok? Did you understand? Ok. Aviraj here. Hello Aviraj. son who Also joining the session right now Share the session. And now some practice Questions that come in the exam Come importantly. Watch Double Star Executes right to left and is the most Brackets have the highest precedence after. Take care. Everything else is from left to right Go in order. Just note this thing Take. Keep this in mind. Sometimes the question is wrong You will not do it and come back. Now it is written here two double Star 3 Double Star 2. You just said ma'am Works in right to left order. But If we assume that the two operators are the same What will you do if the President gives it to you? Is No? Just like I gave it here that 2 double stars 3 So okay, you will solve this, right? In left order you will solve that of 3 Power 2 That Is It. But ma'am, if there is a And what will we do if we give it? So first this execute an exponential or Do this first. So here pay attention to the same order You have to keep in mind that in this case you have to go from right to left Have to go. This is right and this is left. So first you have to execute this. Then you have to execute this. Got My point? So what do we do here now? First? First we will execute here Like your 3 to the power 2 first this It will be executed and then whatever answer comes, that is 3 to the power 2 is what? Power 2 is nine, so this nine is generated. what happened here will come nine ok then In this two double stars will be used so 2 to the Power 9 like this to to the power 9 how much will be 512 which is written here if two are same What will you do if you use the same operator? Left to right and right to left order It is okay to use it, I understood it, it is clear. Is it going well? Ok. Yes. 32 to the power 2 9 It happens son. Ok. Come on ma'am, ninth When is the class? Subscribe to my son's channel Take it right now. A notification will appear as I will post the same class on the community post. I will give it to you and also share your time table. I will give. Isn't it? Time table for 10th to 12th Already shared. Board Brahmas of the live marathon series. your final exam The timetable for the live marathon series is also very You will get it soon. Don't worry. Is No? Now let's look at the next question. 5 + 2 > 6 And 3 it starts to is equal 6 a little It is a complex question but be very careful. You have to solve this. Isn't it? I What did you tell? Operator Presidency of Us Take care ma'am. So operator presidency Speaking of, the first presidency here Whose will it be? Look here now, there's a double star. Not there. So here's the first presidency. Who would you use here? 5+ Solve 2 first. Because plus Highest Precedence of Minus is visible We have it here. is plus minus into divis Has the highest presidency. Isn't it? and the rest All the operators are stars. like you Can you see it here? AND operator It is greater than less than. their The presidency is low. Presidency of 3*2 It is the highest here. So 3 * 2 that is 6 5 * 2 That is Seven. This has been generated. Now What will be the use after this? After this your Greater than and equals to will be used. So If you use greater than 7 > 6 then ma'am This is true. and 6 equals to equals 6 so This also came true. Now what in the meantime Have you applied? End. and the last of It is the presidency. So in the case of True True What does end return? ma'am? True Returns. So in these three steps your Question is over. Tell me, is there any doubt in this? Doubt in this question Is there anything? Now you will do this operator When the question of presidency came up. exam If I come, you will do it, right? Ok. giving thumbs up Please tell me. Got it operator Presidency? Now tell me. I am Asking the Question. Highest Presidency Which operator does it belong to? Highest Which operator has the presidency? Double In what order were the stars executed? goes? If two double stars are given then In which order will you execute it? These I need answers to two questions. Ok? What are now expressions and statements? Are there? Look at expressions and statements. Sometimes they also ask you two numbers In. So what are expressions? From which some value can be generated. As For example, I wrote here a + b, so This will provide some value. 10 in A Is. B has 20, ma'am. So A + B that is 10 + 20 we get a value that is 30. So This is an expression that represents a value. Proceeds so that we can get some value gets an answer. So that proceeds a Value That Produces a Value That Is Expression. What is a butt statement? Expression is also known as statements. Whatever code you are writing, whatever line All the code you are writing is called statements. Are. For example, I have written here after this Write print print in C assign it to You have got it done and now you should look carefully. What am I trying to say here? One two, these two, what happened to you? Expressions happened. But print see is Not an expression. Prince Print C Kya Is? There is a statement. So if we talk here If we do it then there are three statements 1 2 3. But How many expressions? Two. Because Annie Instruction writing in a program is Non-age statements but which do not represent any value He is producing a statement It is called expression. then any statement Is there and expression only produces a Value. What is the matter. very nice. Highest Presidency is bracket ma'am. and double stars Is executed in right to left order. Very good son. very good. Swalia Answer Still working. Aviraj is answering. Moral. Hi Naitik Mamta. Well done son Prince Kumar ok ma'am class 11th syllabus son class We can revise the syllabus of 11th only here. Now we are talking about input and output of CS also. There is a thing here like input and What is output to input Values ​​you want to access from the user If yes, then we use the input function and If you want to calculate any value from the user After completion, it will print on the monitor screen. If you want to get it done then here we will output Using the print function in a function Are. So the story of the input function is a Understand carefully. In the input function, if You wrote enter name that is ok, suppose not If you have taken the name in n then the input function The name will be taken now the name you entered suppose Whatever name you enter, suppose you entered it Is Ramesh okay, right, because the input Returns the value n from the input The string that will go into it will be of type input Default Accepts String But What About if you wrote enter age is not if You typed enter age, so if you entered age 10 so how will this 10 go if you It is simply written like this. what is written Is? Simple, you have written so much that Enter edge in the input function. Ok? Or Enter percentage whatever any number when you You are getting it entered and you have written this in A. Get it assigned and whatever age you enter She'll go into this A and type that string. It must be. Take care. So give us this number The string of type to convert to Will have to use. In which we have int, You saw the STR float function, right? So you In this way the int function has to be applied. Due to which this string value is String value is the default input which The function is now returning an integer. It will convert. Got it? I understood it Well? Which input function is the default? Returns a value? String. This It has to be converted to integer. So we You have to use the int function. and this Mostly you must have seen in the code that these int I look converted to us. If any number Let's write. The output function is a print Function. What can you do in print? Like suppose I wrote print a then a key The value will be printed like 10 if I Any character in print written here Like I have written here, so this is If it gets printed then you can print any You can also print strings. You can also print the value of a variable in If you can get it done then print is the output function and what is the input function it is int right Very good son, isn't it Yashika, are you able to understand? It is good Yash Kirti sorry to string It will become yes yes definitely okay now a Conditional statements are now something in Python. Conditional statements are what we call It is said that they are used to take decisions. Are. For example, you have to take a decision If you want to take it then come here for decision making. We use If-If-Else-If-Else ladder We can use nested if statements like this Let's do it. If I talk about the if statement If I do this, it's called simple if, which is only When does it work? Only on true conditions you will get Returns the value. Only True Condition Pay returns value. for example Here we have written how to use it. Will you do it? Understand the syntax of if carefully I am telling you. Write the condition after the if And then you will put the colon. So an indentation It will set automatically. The value you have now is You will write from here. So whatever the statement is Now you will write the statement from here. This would have been Here is the syntax of an if. If asked in the exam Got that right the syntax of if statement So son, you will come back after writing such syntax. Got It? Now understand this thing carefully that if we Here it is written that let x = 10. And what about us Checking if x > 0 colon then Should it be printed? that it should be printed The number is positive. Ok? What is? Number It is positive. Did you understand? Isn't it? So What did you do here in If? of this x Got the value checked. 10 is > 0 obviously Ma'am what is the condition? this condition It is becoming true. So if this condition is true If it is there then we will get positive written It will be shown that the number is positive. But what about? If this condition is true then What would you do? So you don't get any output. will get. Isn't it? That's why we use if Are. This is called your simple if. It Works Only The Condition Will Be True. But if The Condition Will Be False It Never Work. So For this we use the second type statement called if else Statement. If the condition falls in That case else will execute. What Will it be executed? Else. For example, If I write -10 here then -10 What is greater than zero? Does not happen ma'am. The condition is false. So in the Elsewhere that you will write in else if you wrote print If it is negative then you will get the answer here also that Is negative. This is the working of If Else. Ma'am string is immutable na? Yes String is immutable. Isn't it? string You cannot make changes in it. Right? Which are mutable? List, Dictionary. These are mutable. Ok? Tuple It is also immutable. very good. I understand this Did you come well? There is no doubt about it No? Let's move ahead. So if and else clear Happened. Look, the even-odd program has arrived. These So this was this code. This was your program. If the number is positive or not. check this Write a program in Python that numbers Is a positive or not. So you will do this. Is No? If the number is greater than zero then it is positive. If not, it will be negative. Apply if else. Now is the number even or odd? How will you know? So you have to apply the modulus operator here. will be. If the Number Is Even Then It Is Divided by Two and Returns the Reminder Zero. So this condition is truer than the It prints even. And if from number two Reminder Zero after dividing I don't know 1 2 3 4 If I know anything then these Odd Print in That Case the Number is Odd Else If you do, then this is your even odd program and this is your positive Negative Program Two Important Codes We discussed here and one more thing If important, discuss all the code. If you want to do it then link is in description I have a playlist and I have Top 40 in it. You got the programs done which 100% paper I come, I come every year. Ok? Let us go Now if else what have we done here so far I saw that ma'am single condition is being checked. But what about if multiple condition checks What will you do if it happens? When multiple conditions If you want to get it checked then we can use it here. Let's take the If Else Ladder. Meaning here Along with if, we keep using else if. Like for example, let us talk here The grade you have. to calculate grades to create a program that writes a Program in Python that will calculate Percentage of student's grades According to what grade he is getting. 70% are coming ma'am. So your A grade will be Has been. If you score less than 60% then you will get B grade. It is being made. If 40% profit is coming then you C Coming into the grade and getting less than 40 So you are failing. So some of these grades here Program us to calculate pay You have to make what is generally available. So here Multiple conditions checked. Like We wrote if in if wrote marks is Greater than 90. If the students' marks If it is more than 90 then print A grade. Give. If marks are more than 75 then B Print the grades. And if 90 and 75 If you do not fall into both categories Print the secret. Ok? Understand the matter Did I come safely? Yes sir. Lists and sets Yes these are mutable right? So now you understand this program that you You give condition one in if. Ok? And After that its statements come. Then Else if you apply it. In this, condition to give yes. Then here comes statement two. Then you Else if you apply it. If you have multiple If there is a condition, then you can condition it in this way. Keep giving and Else comes in last block and contains one statement. Now Here the condition which will match is true. She will go and be executed. Rest All Will Not executed. Got it? Now let's talk about one more thing Here comes the nested if key. This is also a question Comes. So where do you apply nested ifs? yes? Suppose I asked a question that among the three numbers you find the greater Have to do it. What to do brother? number three Greater is to be found out from. So its So, here we use if else Are. By the way, you can also use this If Else Letter You can use it. Also you can use nested if You can also say that if a is > B, right? What did we write? If a is > B and in this then Added another if such that if B is > A is > C. If A is greater than B and A is greater than C So print A is greater. To understand Came? It is well understood that How is nested if being used? We have two I checked the condition in the if and this indentation Take care. If there is a mistake here, it The program will go wrong. Correct? would come now on the Els. Where are you going ma'am? of this On the ales. If I put an elf in this Gave. I put als in the inner one that I think Take A is not greater than C. A is not greater than c Is. So what should I print? Else Joe You also need to get it printed. Isn't it? that suppose B is greater. Get this printed. Ok? B is greater. This means you have to write a code like this This will happen by checking multiple conditions. Then You put an else outside of this if and In that then in that if else you have condition I applied it. You can also put If Else inside this Else You can apply it. So when inside if, further if If we are using it, we call it Nested If Else Statement. Got it? Yes. If you use if else inside if else then Nested If. and if loop inside loop use If you do it then nested loop. Isn't it? Let's go now Let us come to the iterative statement. that is Loops. The one you are talking about. Ok? You are talking about loop, now you should see the loop. Are. Ok? So what are loops, son? There are two types of loops. There happens to be one There is a for loop and a while loop. First we Let us understand while loop. Ok? while loop What happens? Basically, in this loop you Whatever condition you give, that condition gets executed. happens unless you have someone Termination has not been given. Three in the loop Things are given. First it happens Initialization. Take care. First you You initialize the value. Then you You get the condition checked on the basis of Condition is increment decrement. So what is your loop? iterates Is. So these are three things. Suppose you have a = Gave 10. Ok? and gave the condition that a The value that is a equals to what is given? Forest is a given. given the condition that a The value will run below 10. The value of a is 1 2 3 4 5 6 7 8 9 10 Must be up to nine. This should be the condition. Its basis loop You should go. Now here you have a + = 1 You do it. Meaning you got an increment Gave. So what is the reason behind these three processes? Will be done? Your loop will start running. Which will print the natural number. So Now here's how to use it? Understand carefully. If I talk about while loop If I am doing it then what did you put in the while loop Do you give? In a while loop you give Condition. What do you give me? Condition. You First gave the condition. And here you have the value also needs to be initialized. to the value To initialize. You have to give a condition. And Whatever statement is there, that statement Will come. Increment and decrement will come. Then your loop starts running here again. Will give. So this entire process is written for you here. It has happened. See i = 1 initialized. of i Gave the value one. Got the condition checked that i Will last till less <= 5. Meaning the value of i is 1 2 3 4 and five. Five values ​​are printed here. Went. Got the value of i printed. And this is it Gone is your assignment operator. So right now what The children were asking, not the assignment operator. What is it ma'am? So look here, this assignment. operator is used. We value plus We are increasing it one by one from equal. So here the value of i is less than equal to 5. The value of the first i is one. Condition checked. It's true. The value of i is printed. The value of one was printed. Then plus equal The value of i from one becomes the new value two. 1 + 1 2 Runs the loop again for two. Condition It was true. The value of i printed is two. Then 2 + 1 becomes the new value three. loop again If we go for three then the new value becomes three. And this loop will continue. Correct? Yes ma'am while loop is infinite. no anyone Loop infinite occurs when the condition It is not correct. or anything you've done here If you had missed it, then in that case your The loop goes on infinitely. your condition Everything depends on it. Now Next Now comes the loop, which one? For loop. If I If I talk about for loop, son, in for loop We also have to take care of these three things. Is. But the for loop is a loop that In which we give fixed value. Ok? In which what we do through range Do you give? assign a fixed value Are. Like for example, I have here Wrote for i in the range of five. What did you write? For i in the range of five. So the value of i which Suppose the value of i will also be the initial value There is a forest. So here pay for i in the range of five. So this range function will work. And it excludes the last value. Is. What does he do? This last value Excludes. So now the value of i is one There will be a print, two prints, three prints It will be, it will be four print. But there won't be five Because the last value is excluded. We did a loop through the forest. Now inside you Wrote print. There must be a colon here Placement print & i then as soon as i print What will happen if you do it? This is the value of i. 1 2 3 4 5 will be printed like this. So how do you specify the range function? yes? specifying the range function Starts, stops, and step through. You You can also give the start value here. Suppose I need to print the value in range function I have to get it done from zero to 10. Ok? So It should print values ​​from zero to 10. Will go. Now, consider me from zero to 10. I want to get it printed except one value. Meaning even numbers 0 2 4 6 8 should be printed. So I wrote 'too' here. two to two Zero will be printed first according to the step Then the forest will be left. Two will be printed, then three Will be released. There will be four prints. So one step at a time Leave it and you will get the answer later. So This Is Step. Is it okay ma'am? What about class ninth? Python? Son, this is Python running. You Class 9 students can also watch this session. yes. This is very beneficial for you too. This same thing is given in class ninth also. Ok? By the way, your ninth separately I will bring the session. Don't worry. Generative We have completely completed AI. Now let's also have three jump statements. Its question also comes in the exam. One There is a break statement, another continues And the third pass. What does the break statement do? Is? stops the loop from executing Is. What does Continuum do? where Tap continue and then start from there. Gives. continues the loop and Pass does nothing. Did you understand? It's Do nothing. For example, I wrote here But a loop like i equal to what I wrote Here? Let's take a while loop. i = forest Played a while loop. i is <= 10 and here Are we getting it printed? of i Value. And I put the supposition here Break. Ok? Now in the break you if i = 3 Do you put it on me or this print I am here Let's apply it. Suppose you have done it on some condition You put it in if. If I wrote that i is equal to 3 when the value of i is three If this happens, the loop will stop running and exit. You wrote print of i okay so this what will happen when the loop becomes one print hui to print hui where i's This loop stops running when the value is three. It will go out and your value will be printed. If it goes through the break, the loop gets closed. It stops working but if What would I have written in place of this break? If I had written in place of this break Continuing, this loop prints one to one and Skip to three and continue with 4, 5, 6 Gives. Did you understand? then break and There is a difference in continuity. Difference Do it between break and continuation In the exam. Ok? Yes of course pattern The question of printing also arises. This Brother, please make the star pattern properly. Is No? So what will you bring? So for this Have to run the loop. What will you run it for? Same Nested loop. I am going to tell you now. no such The pattern printing program has arrived. So Tell me what will you do? So what will you do with this In the case? For printing such patterns Programs will come and I have done all this Top 40. It is explained in the programs. It's not like that That I have not explained. one by one video Created top 40 programs. In that this Explain the pattern programs, son. go Watch the video. All 40 programs are good. Get it done from Ok? Now we move on towards nested loop in which we inside the loop Put the loop on. So two loops here You drive it. One loop then one of your rows It is made. The second number you get from the second loop If you want to get it printed, it would be printed. Is. For example, for i in the range of three, then the key of i Whatever your value is, the initial value is zero. Yes, one, two, you started from zero. Have done. So look, this is a range of three, right? So your loop will run for these three numbers 0 1 2 Used to be. Then j in range of two. So this is J.K. So look at this one inside, this 0 1 0 1 0 1 For. This is your J loop. Isn't it? J Wala There is a loop and this is a loop with an eye. Got it? Now Inside we have printed both the values ​​i and j to print the values ​​of i and j Has been. Did you understand? So loop inside loop Is none a for loop. Ok? A nested loop. Got it ma'am, I wanted to ask you something. Yes, ask. What do you want to ask Ashan? ma'am? Could you explain what? Loop? loop is Let us explain the if loop. then loop One such task is Python programming. Which continues continuously in the language. For which we have to stop him The condition has to be specified. that that Never Ends If It Is Ends On The Basis of some condition. If condition is true Or if the condition is false then in that case This stops in me. Ok? One There is a bicycle. Ok? Did you understand? We only read this loop Both for and while loops. Done. Let's Python How do you specify comments in? If you need to specify comments in Python, If it is there then it is specified in two ways. Two There are such types of comments, son. There happens to be one There is a single line comment and there is a multiline comment. Comment. What happens? Single line and Multiline comment. So single line comment then You define it with a hash. by applying hash You are writing anything. Suppose this is comment. So this line will not be executed. Comment What happens? There is extra ion which We write in code. Extra Ination. Right? And if we talk about multiline comments So what are multiline comments? Which you apply for multiple lines yes. So you can create multiline comment like this Specify within triple quotes You will write here and then suppose here you have triple If you turn off the quote, this multi-line comment They happen. Or you can do multi line like this By applying hashes to multiple lines in the same way You can write. Ok? So what are the comments? Went? Two single line and multiple line. Got It? Yes. Loop is used for iteration. Some Type If you need to enter the off value more than once If you want to repeat something, you use a loop. Ok? Multiline and single line. Yes We Can Use this also. Look, this is how you look at the star. You can use it also. This is also a single line and There are multiline comments. Isn't it? Star Also you can use it. Yes. Let's move ahead. Now after the comment, if Let's talk about multiline strings as well. Is. Multiline string in triple quotes We give. Now a string in Python. If Now we've come to strings in Python. Son. String chapters to as many children as There is doubt in the string chapter, in the list There is doubt, there is doubt in the dictionary, come. Then after this the last unit unit number Three. And then after the completion of Unit Two A little break, right? so that you people There will be some rest too. Drink some water. Ok? Get fresh and up because You are understanding it very late. clear? Come on then Get started very quickly. Now we Have come on the string. After that the list And we'll also finish the dictionary and then Python modules that will again give you a little It seems doubtful. So what are strings? Is it son? If we talk about strings So whatever you want, single inverted or double You write it in inverted, ma'am. whatever U type in single inverted and double Inverted it is a string. Whether I Here it is written ABC, one two three Yes, dollar #sh percentage is written. all this becomes a string. Isn't it? This It's called string. So if I here If we write s = to hello then this is also a string. Name is equals to Riya. Single Inverted It is written in. written in double inverted The string is done. Now String Features What are they? This is an ordered sequence It happens. each character of the string We access it from its index. It is of immutable type. means once If you have defined the string then you can enter it in You cannot make changes. I understand the matter Is? And its indexing starts It starts from zero. This is very different Points that you have to note down. note it Down ok ma'am tell me the tokens, son write the code Look at the time, this code is written for For example, you can see this code three. Code of the line contains for i in range What is an individual unit called a token for The loop is the i variable, okay, these are the operators. is range is a function is function operator Keyword range, what happened to all this, all these are yours What are tokens called? Okay, the smallest. Unit written in a program to string Three features are ordered in sequence. It happens in, it is immutable. Age Well As index start from zero. yes all I am also coming. Isn't it? See The index starts from zero. In this Both indexing is possible. Forward Edge Well as backward indexing. for example What if we have written the name here? If we wrote s = hello. very carefully Understand. s = Hello is written. So this is hello The word is in memory in this way There will be a store. in which two ways Indexing will be possible. You will call this what Indexing will start from zero. this is it Gone is your forward indexing as well as It also has backward indexing. -1, -2, -3, -4, -5 this is called your backward Indexing to. Ok? Did you understand? Now! I will explain this in detail also. So this is About Indexing. both types of Indexing takes place. Forward as Well as Backward. Ok? Come on, let's move on. How to index into a string ma'am? Suppose there is a string containing What did we get stored? Python Py T H O and N. Look at this one named S is the string we have Python store It has been done. ok sir? now here We have written that we know that its The indexing is that 0 1 2 3 4 and five. The default forward indexing we are using. If we talk about backward indexing then Backward indexing will also be used. We Here a statement is written s of 0 means What are you getting at s of zero? S of Zero over P. So how to write this Accessing values ​​through indexing Method: If you wrote print S of zeros then What element will you get? P Print S Of one then you will get Y. print S of two then T will get. You will get four H on three. Ok? You will get O on four. In this way. and if I did this through backward indexing Have to use it. Suppose I wrote here -1, -2, -3, -4, -5, -6. If I were to write here I mean, print s of -1, so what do we get at -1? Will you return it? This is where I wrote print s of -5 then what will you get on -5 Us? y got it? So it became a matter that Accessing individual elements of a string If you have to do it, what will you do? Ok? now what about if I get any substring from the string The string needs to be accessed. Yes Yes Walia We are coming to that now. Isn't it? What Do you want a reply, son Ashan? what what What is your question? Repeat the question quickly. tokens now I told you, you understood, right? Ok. So now we are talking about what we Access a substring of this string Have to do it. Let's say for example that this Python I want to access from here T and To H. Ok? To TH. basically this The substring has to be accessed from here. Then We use slicing here. So Negative Indexing Positive Indexing Did you understand both? Now the meaning of slicing What happens? In slicing you can Accessing a string by slicing it You are living in which positive value, negative You can slice through both values. You can. So if you want to slice it, then for this You will need both the start value and the value Have to give it. Ok? So we're slicing What do I do? Supposes of where from You have to slice, start, Start value has to be given. and as many stars You have to access, give the stop value Will happen. And if you play one character or two Want to access the character without skipping it So you can also give the steps here. Just like we just did with the range function I saw. Ok? Did you understand? Isn't it? Are you enjoying the session? all the things Is it becoming clear or not? Just keep telling me. Keep telling me by giving thumbs up. I am enjoying it In session? Do you understand? what-what Are you explaining? How are you explaining? What All the important topics that come up are It is becoming clear. Ma'am please class ninth it dekho now The beginning has started. And now Barkha Ma'am please stop There is no one. You guys won't stop, right? You have to read 100 out of 100 Achieve Have to do it. So stay with me. Class Ninth IT AI CA Class 11th CA today Will go. IP will also come, IT will also come, AI will also come. Will also come. Just have a little patience and You have to wait patiently. Isn't it? Let us go. So Now s of start stop step. here we Will access. Suppose I wrote here What? Suppose I wrote here that S of I have to start from zero. So from zero If you want to start then this element will come. And Where do I want to end it, ma'am? end me It is on four. Understand carefully. I started from zero Have to start and stop at four. So will access be available? Write and tell me. Tell me in the comments. starting from zero Are. What if you are stopping at four? Will there be access? Isn't it? Now after this if I only get this TA If we want to access it, what will we write? S Off we have to start here with two. And where to end it? Three Pay. TH To access. So am I three? Will I write? Or I'll write four. So here We will write four. Why son? Because The last value is excluded. Attention Keep the stop that you give in it. The last number is excluded. So you write one more. So in this case When you wrote zero to four, very good. So You will get PYT and not H also will get. Ok? Will get up to PYTH Son. 0 1 2 3 O will not be found. P W T H will get. very good. Ok? And if you're here If you access pay two to four You will get T and H. And these slicing you You can also get it negative. Negative numbers also You can write. Also write negative indexing. You can. Now what do you do here? Is? You have to give the index. Steps have to be given. So Yes of course you can give the steps also. Suppose we wrote from zero to five and colon I put it and wrote 'too'. So what do you do now will get? PTO will be available only. Is No? Each letter will be excluded. Understanding I came? Hi Raunak Ma'am. I am a new Student. Ok? Very Warm Welcome Here Son. Let's go to the live marathon of SLA 11 CS The session is going on. Ok? Now some indexes You have to answer this. what is written Is? s of 1 4 Now the kids are asking me You were the one who predicts the output, ma'am? Do questions arise or not? those with errors Do questions arise or not? this same I have questions, son. Indexing Slicing Will be asked in. what to come on 1 colon 4 Is? Tell me the answer quickly. Isn't it? on Colon Three If I wrote it like this. Supposes of colon I just put it on. I put a colon like this. Blank What will be the answer in this? Tell me quickly. Here Pay I have no start value, stop Value, end value is not given. then what What will be the output? Quickly. I am waiting for your answer, right? Ok? Let's now after this s of colon It's written three, it's written colon two. If this The way I wrote it is colon of two No? Or I put three colons here. If I leave K blank, will the answer come? So In this case son your entire string as it It will be available from start to end. You will get the complete string. And in this case You will start from zero but will end at two. The value will come up to one first. In this case, three Your value will start from and end at You will have access. This is the answer. Ok? Did you understand, ma'am? Reverse. Ok? If this If you want to reverse the reverse string then You have to write simply. You both of these Leave it blank and write -1 here. or else You write down two s of 0 to 6 and -1. So this In case you will get the reverse. -1 to what will be? Understand carefully. What will happen with -1? Who Your string is in the opposite order. You will see it being printed. means that You will find here N O H T Y and P All the Letters. And this question comes In the exam. This question comes in the exam If I want to get reverse printing done then we The steps that are written are step minus. Let's write it in the forest in slicing. Correct Is? And the same thing happens in the list as well As in tuples. Got it? Now some of the string There are operators. Mark it as important Do it. This will definitely come in the exam. What are operators? The first happens Plus, the second is star and the third is These are. Ok? If I talk about plus Now you must be thinking ma'am plus to addition It is used in. In the Yes of Course Edition It is used. But here Pay Plus can be used. We do it like concatenation. string Now you cannot add character values ​​in You can get it done. You can join character values You can do it. So concatenation would mean There is joining. And star means knot Multiply. The meaning of the star Repetition. How many times a value You have to repeat it again. This is Repetition. Like for example it is written here I put Hi Plus and wrote All. So hi all, right? Hi all, whatever is there without I joined the space. Two Strings Are Joy with the help of plus. for example If I have written here two + 3 single In inverted. So what will be the answer? Just Type your answer in comment. Ok? Just type your answer in comment if I wrote here in single inverted 2 + 3 Then What Will Be the Answer? Now Let us understand repetition. Ok? Repetition What do we do in any string The number of times it has to be repeated We will write it here. Suppose it is written High Star Three. So three times high repeat Done. 1 2 3 repeated three times. yes Did you go? Did you understand? Well? Ok. Swalia says 2 to 2 Yash Kirti 23 Naman 23 Okay, yes, of course, its answer is 23, right? Don't do this at all, its answer is five Come and write this in single inverted It's written, isn't it, that's why this is a string and when you plus the string If you do then the answer will be joining of the String only so two and three are joined are without space okay if we do 2 + 3 If you write then that will be of course five Because two and three are numbers here. For For example, if I wrote single Two stars in Inverted 3 than what will be The answer? Come on, tell me quickly. So what is the answer Will yours go? Very nice son. applause Two for yourself. Isn't it? Your concept is clear What does it mean? Ok? This is the review part. Means your review is going great. Ok? If I had in such a single inverted It is written 'To' and a star is put in front of it. Wrote three. Then What Will Be the Answer? Hi Drishti. Hi Swalia. Five. No one hears the answer is Triple two. Two is a string that is three It will be repeated again and again, right? Three Times We Repeat Are doing. Yes absolutely correct. Did you understand? Three times we are repeating this two Are. So what is there now? string Is. Not a number. If 2 stars were written 3 So that will be six. Isn't it? Butt Single If it is written in inverted then this. Got it now? There is no doubt. Now you can write it like this You can. Even if you write 3 stars and 2, it will still be the answer. will be to to to. How do you write it down There is no sequence. Ok? Now Let's talk about membership. So like I Told in and not in membership operators Are. We also use them in strings. and we use them in lists as well. Are. So I just told you in the string If you check P in Python, it will Returns true. And if it doesn't happen then it will Return falls. We just checked this. I read it in the operator. Right? Let's come to the Next that is common string functions. What are the functions of a string? Whose question is asked to you. See, First find the length of the string Find out how many strings are there in a string If the number of characters is We do. For example, your string is s = python. What is a string to keep in mind? s = python. This is our string named s of. So if you wrote lane of s then what is this Will you return it? Characters. in number Are there any characters? 1 2 3 4 5 6 then it will Return Six. Got it? Now if you wrote s Dot lower. What did you write? s dot lower Function. So if you use the lower function If you do, what are the characters? Will you go? All will come in small letters. So what are the characters here? Will it be? Now everything is printed in small letters. Will go. If you use the upper function So all the letters in the upper function through Will come in upper letter. Meaning Capital In letters. so already in capital letter so If you write this as S dot upper then whatever this The characters in the string will be all capital Will be printed. If you wrote s dot All titles will come in title case. Now! Do you understand title case? first in title case The letter is capital. Everything else would be small Are. So if I wrote s dot title What will happen? Title. Ok? So here you are You will see that P Capital will come and the rest will all come. Small. Got it? And here we wrote S dot capitalize so capitalize me wahi saare First letter capital and all others are small. Now look, these are two things. Meditation here Keep. Ok? If you give a sentence Diya, like I wrote hello how are you? So H is the H of Hello, How are you, right? R and All these will be capitalized here. But. Ok? Is it clear? well understood Came? And what if I talk about the count? will be? The count will count occurrences. For Example that we have counted here Occurrence. Suppose I wrote accident like this. Ok? So here we can define the occurrence of C. Getting it counted. So the letter C is How often is it coming? So count counts di Occurrence. Occurrence count of A has to be done. So What is the occurrence of A? A Key Occurrence One Time is repeating. A one in accident The bar is coming. So it returns one. and if Occurrences are not yours, character is yours If it does not exist then it will give error. Ok? Did you understand? So these are some functions Yes, do it well. Isn't it Lane? Lower, Upper Function, Title, Capitalize Count. Apart from this, there are other functions which Questions come in the exam. very good. very good. Isn't it? As many children as I can answer We keep doing it. Very nice son. Correct Is? See, this communication of ours should continue. I need to understand that yes Of course you are starting here. And you The concepts are becoming clear. Right? Yes Yes. There is also a find. You came, right? Look, look These find. What does Find do? Character Finds the. Find the character And gives its location. Suppose I Bola Find of H. So now you know that s I have Python. P Y T H O N. and its What is location? 0 1 2 3 4 and five. These We have indexing. So what is the return of H? What will H find return? Three. what do you get at the third location Used to be? I am getting H. Done. Hi Sudha. How Are you all? Let us go. So whatever children come to the session Son, share and like the session. And don't leave without subscribing. Again I I'm repeating this is a big motivation for Me. Now what does replace do? any letter If you are replaced by another letter inside the string then it will Replace. Here I will give two parameters. And B. For example, here we have Whom? This O has to be replaced by A. This O has to be replaced by A. So what are you Will you write here? S dot when replacing Use it by putting a replace dot. Ok? Now What do you need to replace? O Letter Ko With whom? To be replaced with the letter A. So Here, wherever O is written, it will be written with A. It will be replaced. Did you understand? Now What will you get from this? If you print If you get it done then P H T P Y T H A N will get. Got it? Now Split Function and It comes with a and a split. And what is another function that It comes in difference. You are asked. Isn't it? I will tell you about that function also later. Right ma'am? Teach me IP, son. IP holders You can revise all Python from here. As It Is Revisits the entire IP as well. Is No? By the way, a dedicated video of IP I will bring it. Like CS is going on. Don't worry. I will also teach IP people. Ok? Same like that. And it will come very soon. Bus What to do? subscribe to the channel So that whenever it comes, you will get a notification. Ok? Now let's see what Split does. Is? Splits it into a list. I mean, suppose we wrote it here that s dot split. Ok? So now these things of yours There are characters, all of them are included in the list. Will go. One will come this way. Ok? Did you understand? This is split function. And next is join. So like concatenation works in the same way as join works. This is your list in a string He joins it. Did you understand what I said? Who You have passed the list, that list Joins the string. Right? End Last is Strip. What does the strip do? Removes spaces. Whatever space you Suppose you must have given it in the string here. We have given some spaces, so those spaces It removes it and shows it to you. This is The difference only. Yes Partition Yes Yes Yes Coming right away. Partition is also ahead. Listen What does partition do? Split and There is a difference in partition. very good Swalia. Ok? Partitions that function What does he do? from where you The character by which to partition Character. Suppose I have to partition from T Is. Ok? in the string. So that's basically split the string by that character It divides. Did you understand? Now t If it is repeating four times then those four Will partition it. And Split Is Converted into list. Split your just Splits. Ok? Did you understand? Yes. So partition and split in string You know the function, do it well in the exam Take. Right? Now List in Python. and all this I have explained in detail. of practical Explained along with. If children who I want to see practicals too, son, so dedicated. Go to the video that explains it. You can see these practically. Got it? Let's list in Python. Now on the list We are. The string is over. Ok? So Which of the strings is important? I just told you what I saw We? String Functions Important Is. String operators that plus star And these are important. Its questions Also come in the code base. and how to code Will you come? These indexing slicing as well as If you want to traverse a string, you You can also traverse by using a loop. Correct Is? If you need to traverse a string For example, what we have here is Python has taken a string named this if If you want to travel, how will you drive? Loop? for i in range. Ok? Range of Joe also your string is the string named S So you can take that in this. as many The range function runs until there are characters. Take. And get it printed here. So what will happen with this? This will cause your Each letter will be traversed. p y t h o n this way so this Traversing is also possible. Isn't it a string? In. Now you are on the list. List your You play a very important role. Does. You string very carefully Understand. Is it okay son? len function length Will return. Yes, the len function can be used in a for loop You can also use lane or lane of range Off lane of string can run there too yes. Isn't it? If you also run lane in for loop So it will go up the length of the string. Till the end. Yes done. Now let's talk about List in Python So the items in a list in Python There is a collection of. like string There is a collection of characters. these items There is a collection of. Like for example that You have marks in five subjects. Hindi, English, Maths, Science, Social or Like this. Isn't it? Physics, Chemistry, You can take anything like maths. So 90, 40, 60, 80. Ok? what did we do? These Individually assigned to a character Instead of assigning to each variable, we have assigned Made a list named Marx in which these Store the marks of all four subjects Gave. So This Is a Kind of List in Which you can store same in which you can Store similar and different types of values Di similar and different types of elements. Ok? You can also do this by detail name You can also make a list. in which you What did you do? So in which you suppose your role Got the number assigned and wrote down 1001 names Ram, okay, I have written the class, suppose it is 10th. In this way I wrote the percentage as 96.5 Done, if you understood this much then you Heterogeneous values ​​are given meaning Different types of values ​​are integers string float all the values ​​given then you You can also create a list like this List of similar type values ​​as well If you can create it, then the list can be any. Any type in the Type of Values ​​list I understand what values ​​are possible Yes, okay, okay. And how to create the list? Do you? Let's create the list, ma'am. from square brackets. This is the main point, which You have to remember. How to create a list Is it done? The list is created is in square brackets. Done. Now here Pay list has been created with marks and Names. Look, I have made a list of names also. Like Aman, Riya, Raj in single inverted. Wrote marks 90, 85, 78. Now to the list What are the features? I asked you a question. What are the features of the list? How to Define the list? What is the list? so this is Will you come after writing it? Now if you ask about the features A list is an ordered collection. Ordered Do you understand the collection? The same starting from zero There is indexing and negative indexing It also happens. It is mutable. string Once created, it cannot be changed. Are. Change the list after creation Can. You will get your roll number and name here. If you want to change, change it. Will be changed. Easy The change will happen. That is why it is mutable. Here, the marks of a student are wrongly written. Gave. Suppose it was 50 instead of 40. 40 write Gave. So it will change. Understood? Its You can also increase the element. his element Can also increase, decrease, delete yes. So addition, deletion, insertion, updation all It is possible in the list. That is why it is Mutable. Got it? Chalo Now Can Store Mixed data type values ​​as I mentioned This is your integer. This is a string. These The value is of type float. All types of Values. And it also allows duplication. Does. So if you want 20, 20, 30, 30, 40, 80 list in this manner Create, then duplication is also allowed Here. Done. So these are the features of list And hope you understand this. Now on the list There is also indexing and slicing. If Let us talk about indexing very carefully. Understand. So the same indexing in the list also it occurs. We have created a list here. Lee like 10, 20, 30, 40 and 50. Understood Went? Now the indexing will happen the same way here. Positive Indexing Are There and Negative Indexing Are There. Ok? negative Indexing starts from the right side. Positive indexing starts from zero Is. Always starting from zero Is. Ok? Now if we have this name in l The list has been made. If we do L of 0 axis then Which element will be available? Tell me in the comments. Ok Guys? When will the class for IP be held? Son? There will be classes for IP also. Don't panic. Those with the IP can also view this session. It has the complete Python As It Is. Isn't it? The computer part is as it is. By the way There will be another explosive session for IP as well. Don't panic. Also for question answers I will bring the session. All the things. right now The movie has started, son. Right now our The sessions will now run continuously. Ok? 10 will come. very good. Isn't it? L of 0 per 10 Will come. If I wrote l of -1 then what Will Be the Answer? 50 will be the answer. Got it? This is indexing. Right? This is Indexing. Isn't it? Now we move on On to slicing. So in the list you can do slicing You can do it too. Slicing Is How About Like this. Write the start value of L. Put a colon, write stop, and step I have to write. Step is optional. Suppose I written by l of colon colon blank colon Left blank, nothing given What will be the answer? Tell me the answer in the list. What will be generated then here's the answer will be You will get the complete list like 10 20 30 and 40 okay if I here Wrote for example like this what was written that I wrote supposing three, using a list of colons. that I only need to access the list up to three If yes then what answers will you get 10 20 30 40 Or should the answer be 10 20 30? So son, here's the answer will be, the answer will be 10 20 and 30 only because in third position The last value is 40 and is excluded. Got it? And there is nothing written here. It will start from zero. Similarly, if I I have written here suppose 2 colon four. donation What Will Be the Answer? So start with two There will be 2 3 but the fourth element Will be excluded. So 30 and 40 will be the Answer. Got it? Very good Yash Kirti Soheliya copy will be yes You can also copy the list. You can also copy it, there is a copy method. through which we can copy the list Very good Mamta very nice son very good Great, I understand, Dhaati also Isn't it okay, so it's clear now about this list To get the element reversed, we need 50 40 30 20 so what will you write, simple code Access the complete list in Blank Access the list and do minus one. 50 40 30 20 and you can also write it like this You can start the list from four here. Even if you can go to zero, you can still get -1 Even if you do this, you will still have to do backward indexing. You will get the list through this only. Done, let's go then Got slicing indexing? very nice Son. Isn't it? Now list operations. Now What operations are performed on lists? Like performing on strings. If L1 + L2 are two lists in concatenation then The elements of both lists will be joined. L If you do star 2 then list two elements. There will be repeats. Now you are on the list If you want to get your membership checked, get that done too. You can. For example, understand carefully. What did I write here? very well Understand this thing. Ok? Suppose this is a There is a list called L1 and a list called L2 I made it with 90 and 80. If I Write L1 + L2 then what will be the answer? The Answer will be 10, 20, 30, 40, 50 and 90 End 80. This answer will be generated. Both The list has been combined, added, joined. Went. Concate. If we wrote l star2 l1 this l1 is suppose l1 star2 so it means 10 20 30 40 50 will repeat again 10 20 30 40 and 50 elements will be repeated twice because We repeated this two times. I understood the matter and it became clear, very good Very Good Son -1 to you backward You can access the indexing, right? Now let's check if there is any L Is the element in the list or not? what 10 in L1 in operator is used. So 10 L1 Am I in it? Yes it is. So this returns true. Will give. If not, it will return false. So in not in is also used here. Correct Is? clear? clear? Ok. So now moving forward Where are we? Now let's move forward On the operations of. Look at the next one List functions. List, String and Dictionary. Three to four cheeses very-very It is important which comes in every year's paper. And that is important. Functions come Your operators come from a list of strings and indexing in dictionaries Slicing questions from you which is the code Based questions are asked. Now to the list What are the functions? a little carefully See. Len of L will return the length. What is the number of items in the list? If I wrote here L1 lane of L1 L1 Passed it. So ours was 10, 20, 30, 40. What is in the list named L1? 10 20, 30 and 40, what will this return be? how many elements are there here 1 2 3 4 so it Returns for is not in the list if you To append an element means you want Append an element to the end of the list If it happens then it happens through append and If you want to access one list from another list If you want to extend it, Extended use is got it mark kar lo There is a difference between append and extend. What is the difference between up and end Extend then the answer will be like this. Ok ma'am? When will the AI ​​class be held? Very early AI There will be a class of. Very good son. Isn't it? What is the length returning to you? Four Will return. What will happen in append? If I have written here L1 dot append And in append we use any L2 list Together or sorry here we are an element as well Can write. Right? So if I here What will happen if it is written L1 dot append AT? This AT will be appended at the end of the element. Did you understand? And if I wrote L1 dot Append sorry extend okay? L1 dot In Extend Extend, if I pay here If we write L2 then assume that our L2 What is the list? Which has 100 and 200. So Now your new list will be 10 20 30 40 80 have been appended. and 100 and 200 This will be fully extended. in a list If you want to add another list then extend. If an element is added to the existing list If you want to do it then append add ads element Extend Aids List This Is Difference Joe Keep in mind the code of both Write the output and bring it if you have an exam. If the question comes then it's okay, yes of course Extend is fast as compared to up and Okay, now how is this, that is also a reason for it. Because this is a function, in the function you list If you add it, it gets added quickly now In the insert statement you can use the index per value If you can insert it here, you will You have to provide the index. Suppose you have someone If you want to insert a value at the index You give the index from i 0 1 2 3 4 and that Give the element you want to access. Next is remove. If you find any of the following from the list If you want to remove an element, you can set that value. You can remove it from here. Ok? To you That value has to be given here. so l dot If you write remove of zero then particularly that The value will be removed. what does pop mean It happens? Removes the item. I understood talk? The pop method is also removed. So here what do you get? RemoveLastElement. If this element x is to be deleted from the last If so, we will use the pop method. Any Remove an element from a particular location If you want to do it then you will use remove. This is The Difference Between Remove and Pop. Ok? and pop of i means if from any index If you want to remove the value then you can do it in pop pop. If you write i, then you will write that index value. That too will be removed. one more here The function is used. If the list elements You have to get it sorted. Sort means In ascending order In descending order You have to arrange it. So here we are sorting Let's use a function called. By which The elements of the list are sorted. Understanding Coming in? Ok. Yes absolutely correct. Is No? Any value at a specific index gives you If you want to get the change done then insert it. Ok? Annie Doubt in this function? No no. Reverse. Reverse is used to reverse the list. Now there are two ways to reverse. either reverse from the function and if from the function If we do not want to reverse then in slicing we What do you do? Reverse it by writing -1 We give. Both methods are valid. Count What does it do? of an element in the list Counts occurrences. In the Suppose List Here we see that 20 20 is repeated twice. It is happening. So you get its occurrence counted. You can. If you write 20 here, then Occurrence to return will do. Ok? If you write index then find position Suppose I wrote what here? Suppose I Here it is written that l of index. What did you write? L Off index and here I wrote 40. So what will the index return? position It will return what position 40 is in? 0 1 2 3 in third position. So it positioned Returned it. Ok? Now you have to list All the elements have to be made equal so that the number The total of all the elements written is Go. So in list sum function that list If you pass then the total will be 10 + 20 + 30 + 40 + 80 Like This. And if you have a list Find the minimum and maximum element in Minimum in the list that has to be got out Which is the element or the maximum element Which one is it? Meaning in this list 80 is the is the maximum and 10 is the minimum. So you min And you can use the max function. So What functions have we just seen? Son of the list who comes in the exam? that Is lane up and extend. These come. Take care. Remove Pop Count Reverse Sort Minmux. This will definitely come in exam. And these get published in the paper every year. Are. Ok? Yes, Ask is also a way for Sorting. Ok? Of course. Understood Went? Let's move ahead. Moving on after the list Now let's look at what elements of the list you want to see. Can you traverse? You can definitely do it. Like we traverse the elements of a string You can do the same with the list also. So if you It is written for i in l, isn't it i, what is that There is one element that will be in the list. L is our list. Suppose 10 20 30 40 This is our list. If you run this loop in it If you give it to me and get it printed, what will happen? Will it be printed here? As many as the list Whatever elements there are, they will be printed. Correct Is? If you want to print the index You can also get the index printed. Right? And There is also a concept of nested list. What is a nested list? So There is a nested list. When you list If you use a list inside, it is nested. There is a list. Like I made a list. Ok? It wrote 10, wrote 20. after this I made another list in it. that is 100, 200 and then I also have 40 and 50 here It is written. So what are you looking at now? Understand carefully. Isn't it? This is your list And in this one list you have this one more The list has been created. So in the list You have made a list. How to access it Will you do it? Look, we'll access this with zero and One position and this whole thing is yours in the third position. will be. This is fourth and this is fifth. Got it? Now look carefully here, How to access a nested list Will you do it? So to access it, here's how Your third position will go to zero. Isn't it? And this is the first position of the third. means this The element with zero, this is the element with one. Did you understand? So this is how we create a nested list You can also create that inside the list You can also define a list. like here Look, he has defined two lists. So How are you accessing it? Look at this here He has made it like this. one one and two This is a list made. put a comma and One three and four one list and this list Defined inside. So how will you tell me now? You? Understand carefully. Now how will you tell me that Ma'am, it is at zero position. This One Position It is on. And then individually in this You have defined the positions that these are zero and one. And this is at zero one position. So how Will you access it? that the zero of the zero position Element. Meaning you will get this forest. Ok? and the first element at the zero position if I wrote here the first of the zero position Element so what will you get? I will get two. Ok? If I write here first Zero element of position then comment section Tell me what will we get? Let me know what you got in the comment section. Us? Ok? And if I wrote first The first element of the position. Answer to both I just want in comment only. Ok? ma'am, Length counts elements internally. how does Python Know The Length Is So Fast. Listen Lane What counts? Counts elements Is. Ok? Now the len function in Python Yes, it is fast in itself. Because See what happens? which functions Nor are those functions created for this reason. So that your task can be done fast Can perform. If I reverse it And if I get it done through -1 then it will work slowly. It will do so because each element here Will cross check. And right there if I reverse If the function is called then the function first Is made of. Just call the function and output it. You will get it. Got it? understood the thing Well? Is it clearing? Let's cut the call I did it. Ok? Let's move ahead. Ok? Because studies are more important. So I understand this Have you arrived? One and three and four. Ok? So As many children are writing three and writing four You are writing absolutely right son. Is No? Three and four will be the correct answer. Right? Let's move ahead. Now, nested lists I understand how you have to access it. Went? Now the question about the code has come, it is wrong. Don't do it and come back. Ok? Let us now come to the tips Went. There is a chapter on tuples. understand carefully Take. Tuples also contain all the same things. Are. Now how to convert tuple into list Have to do it? I will tell you everything. I won't even go Until the entire chapter is finished. Correct Is? It's 10:00. By almost 10:30 we Will finish the session. Until then you have to stay Because the third unit is still remaining. what is tuple It happens? Tuple exactly same with the List. As with the list Well, there is also a tuple. But there is a difference in this It happens that tuples are immutable. In tuples You cannot make changes. List and Tuple What is the difference between Quickly Narrate. Isn't it? Square brackets enclose the list Let's define it from. Parenthesis to tuples Let's define it from. The list is mutable Is. A tuple is immutable. These two of This is the biggest difference. Two of its biggest There is a difference. Apart from this there are others also. Can you tell the difference in its functions? Can you tell the difference in writing this? Right? Now we have created a tuple of 10 20 30 In which again indexing is same. backward And Forward Indexing Is Same. Ok? A tuple named 10 20 30 will be created. Now In this neither you can extend the element You will be able to get it or append it. Ok? But How can you do that, it is just at the end I will tell you. Features of Tuple: These are also ordered pairs. It is of collection but is immutable Is. Duplicates are also allowed in this. and these are also mixed data type values Contains the. I mean, if I here It's written Ram and here it's written 95.6 so yes it Accepted accepts this. Ok? Now let's see how to create a tuple. Is? And how to create the list Is? There is one more difference. Another difference Is. Understand carefully. Ok? What is one more I am telling you the difference here that you You can create a list using a function and Also from the list function. If you use the list function If you create an empty list from It will be created. You can list the list You also create it through function. By the way, the tuple We create it with the tuple function. Is No? Create an empty list in which No element is to be given. So the list Created from function. So a list There is also a function and a tuple function. Correct Is? Yes. Of course it is heterogeneous. Is No? Different data type values Meaning heterogeneous. clear? Now the tuple See how to create all these lamps. Has happened. Tuple function is also given. Correct Is? Did you understand? T1 has a sequence of 1 2 3 Made a tuple. Created a tuple of one character Which will have a single element. be careful Understand. If I had T2 is equal to such It is just written. So this error will be generated. Isn't it? If you specify the element, you can use a comma. It is necessary to apply it. If you put a comma, it means tuple. There is only one element. Understood? Asking you this Can. You have to create the tuple. So If you create it with the tuple function, Now you will think that you are using the ma'am function. Are. did it have the same bracket back inside it What will you create? So it is wrong. If you are using the tuple function, here You will get the value of the tuple inside the square brackets. Elements have to be given. So from this list you Understand carefully. Create a tuple from this list What are you doing. Did you understand? This is mostant The part you have to understand is that with tuple functions We can also create a list using the create tuple function. You can create a tuple. when in but tuple If you specify the element then parenthesis will not be used. You will have to provide elements in the list by giving. Ok? Yes TUP function is used. Ok? both Both you can use. Ok? Need a break. Bus I am giving break after this tuple of list Am. Ok? Don't panic. so much understanding Am I here? So the single element tuple needs Comma. For a single element you need a comma It has to be applied. What I have told here. Indexing and slicing is also used in tuples. Is. Look at that, Tee of One. But one thing Keep in mind that if you think that this tiple We have it. Isn't it? understand carefully Also this thing which I am going to tell you now. Correct Is? Because its questions are not there in the exam. Sometimes they become so. what did I write Here I have created a tuple is from 1, 2, 3. Meaning one one two in memory And a tuple named three was created. From one to We can access it. If I The element at the zeroth location needs to be accessed. So I wouldn't write t of one this way. How will we write? T of square bracket. So indexing is always with in square Bracket. Whether it's a list or a string Be it a tuple or a dictionary. When If you use indexing and slicing, we Always use square brackets Are. Keep this in mind. So what about T of one? Will I get the element? Two. Two Mill of Tuple Will go. If you want to do slicing then slicing also It is just beans. Ok? Let's now tuple If we come to operations, then which ones are there on the tuple Are there operations? Concatenation, Repetition End Membership. Slicing beans right now Just like you saw in the string in the list Slicing also takes place. Now look at two elements. If you want to add a tuple, what do you do? Will you do it? Suppose there is a tuple named t1 which contains You have 1 2 3 and a number called t2 There is a tuple in which you have taken 4 5 6. If you do t1 + t2, what will be the Answer? 1 2 3 4 5 6 OK It will be done. As such will be. But this does not mean that t1 Elements will be added in. Changes in T1 It will be done. There will be no changes in T1. T1 T2 Original will remain the same as it was. Changes Where are you going? There are no changes happening anywhere. Just what have we done? elements of both has been added. Just done, got it? Difference between ma'am remove a and pop in My son is coming. Ok? What If the Same Values ​​Exist Does Python Decide Which One to remove? Means means look at whatever you remove If you give the index, that value will be removed. Pop removes the element from the last. You know if there is an index in pop If you want to delete an element, then that element It will be deleted. Ok? OK clear? Let's move ahead. Repetition What will happen in me? Elements of a tuple like a list I was repeating the same thing. If you have It is written T1 star 2 then 1 2 3 1 2 3 twice It will repeat. But that doesn't mean that that changes occurred in T1. T1 As It Is Remains. But you have to perform this operation Seems to be happening. Membership is also available in You can use it. If you are writing 10 in T1 So does T1 have 10? Isn't it? So It Returns Falls. What? It Returns Falls. Done. Let us now move on to the tuple. On functions. So what about the tuple? Are there functions? Look, Lane of T from which You calculate the length of the tuple. Max of T In which you can define the maximum element of the tuple. You can access it. If you wrote T1 inside max then max of T1 What is Elementor? 30 returns. Ok? If You have written min of T1 so min is minimum What is the value of the tuple? 10 It Returns. If you write len then there are three elements in the tuple. So Lane returns three. Are you understanding this? Ok. Write your answer quickly in the comment section. I will write all its answers. Ma'am Pedro's question comes. Absolutely Comes. What did I just say about Top 40? Pedrome, Armstrong in Questions Factorial, Fab Series, Even, Odd, Greater, GCD, whatever I said, get it done. Are. Ok? Go and see the top 40 questions Take it once. Ok? All these come son. Everyone comes. Ok? And all those triangle triangles with patterns He has got all that done. Ma'am, SQL Will you get it done too? Absolutely. So in IP Isn't it SQL? SQL in 11th IP It is there but it is not in CS. ok let's go ahead Ahead. Okay, now I understand Pisces and Max. What does Sam do? Equalize all elements Will give. If I wrote sum of t1 then 10 + 20 + 30 All three elements added will give you the answer How much will it bring? 60 Will Be the Answer. Right? Count of x, understand carefully. If Suppose we have a tuple named t2 In which 10, 10, 20 and 30 were assigned. Gave. Now you are writing, suppose t1 t2 dot count of 10 that you count to 10 Have to get it done. So what will it return? 10 How many times is it repeating? Three Times So it will give three. Now there is one Sort function which children liked a lot I demanded that ma'am you have sorted function Did not teach. So listen brother, like in the list Sorting happens here, it gets sorted here. Is. Ok? What does the sorted function do? Sorts the elements. and Joe If the answer comes, it returns it in the list. Is. Like for example our T1 is a Here I took Suppose 100 and here I took 1001 for example and Here I have written 90, this is Have to sort. Understand carefully. So we What will you write here? We will write here SortedFunction and SortedFunction in We wrote Suppose t2. So now the answer to this is What will you get from that? You will find it in the list. will not be found in the tuple. Create a tuple here I did it but it will be available in the answer list. And All elements will be sorted. 20 30 90 100 and 1001 will be the answer. Got it? Did you understand, ma'am? Basics of ASCII I will explain it to you, son. Isn't it? like now This concludes our tuple and dictionary. So I will solve my doubts and then Unit Three I will come to pay. Ok? Let's take the next question You can pack and unpack that tuple. Now How to do this packing and unpacking, ma'am? Listen. Suppose here we have a tuple named T Defined in which 10 20 30 is assigned then This became a packed tuple. A triple was created. But if you want its element If you want to access it individually You can write in this way. means that t Equ to if you wrote 10 20 30 and if You can add any number of elements of this t to a b c = This is the element at location 0 1 2 Everything will come in ABC. So now this tuple were all the elements of a packed tuple of Have been unpacked. Meaning now individually a You will get 10 in. In B you get 20 will get. In C you will get 30. Got it? This is pack and unpacking of tuple. Ok very good fairy. very nice. Son The difference between mutable and immutable is printed. In the paper. It has been published in your paper. Is No? Whenever the paper is about to be held. Ok? Mutable means those elements which are Are? Those sequences that change. In which the value can be inserted, deleted, You can make updates and modifications. Immutable In which you cannot do it. So now we have Read the list and could make changes in the list. Unable to remove mutable tuple Yes, it is immutable right now. We have also seen the functions up and extent What was there, what was there, let's now list and tuple Look at the difference in this, this is your mutable and The difference of immutable is going to be okay. We can separate this from square brackets and Define with parentheses. In this You can make changes. I don't make changes to it Are. The list is slower. Tuple Faster it occurs. Because of immutability and Mutability. This became its advantage. You can change the data here. Here The data that remains remains fixed. Got It? clear? You will write down this difference, right? Please write in some detail. I did The main concepts are written. Yes. clear? Let's move ahead. given next Now that topic has happened which you are not able to understand. Was. What I just told you is that in the tuple Can't make changes. But we call the tuple You can change it indirectly. Directly we can't change. No Extend And there is no append method at all. ma'am. There is also no remove method that returns a tuple Remove the element. So now if What if we need to make changes to the tuple? Is there any solution to this? Oh absolutely There is a solution. You can indirectly call the tuple You can modify it with the help of List. We can modify the tuple using a list. Can do. How? Let's see. Good Evening ma'am. I am a student of class 10th. Ok. So would the IT marks be replaced? Are? Still stuck there? Yes son, absolutely IT marks are replaced but Except English and Hindi languages, all others If your marks are low in the subjects then IT marks get replaced. This This is the best five, a video has been made. Also check out the best five channel. Scroll through the playlist and you will find it. Ok Let's start. quickly and carefully understand. Yes, with the help of course Walia list What can we do to the tuple? modify it Can. This is an indirect way. How? Method One. Convert Tuple to List and List Two tuples. First convert the tuple into a list. and then convert that list back into a tuple If you convert it, the elements will change. How to create a tuple of 10 20 30. Then we What did you do? Pass this tuple into the list function Passed it. So this is the tuple named T. This made a list. Got it? Now this list It has been made. So we have the first element in the list 10 Changed what was there. Then we have Tuple When the element is changed in the function, now this 10 20 30 became 99 20 30. and then We pass that back into the tuple and If you get the tuple printed then now that tuple will be yours It will look like this. Good First Element right so the first element that is 20 will be Changed. Tell your doubts in this quickly. You don't have any doubts, right? Isn't it? Just give me a thumbs up and tell me that There is no doubt, it is quick. In the first method Isn't it? Let us go. The second method is to add an element. Using concatenation. this once again I will get it recalled. Understand carefully. You have to create a tuple. Whatever you tuple You will make Suppose 10 20 30 We made a tuple. Then you have to create a list using the list method In. You have to pass this tuple. So When this tuple list is passed to the method, now This is no longer a tuple. What has it become now? List. The number of elements it has is now 10, 20, 30 have come in a list. here There was a tuple, here there was a list. what are you doing now yes? The elements of the list are 0, 1, 2. We changed the first element of the list. Gave. From 99. Change the first element of the list Gave. There are changes in the list, right? ma'am. What are you doing now? This tuple is named TUPL E from function named tuple You are passing this list to the function. So what will become of this list now? Tuple. So Now what do we do with this existing tuple? Gave? 1099 and 30 changed. Second Value Has it changed or not? It has changed, right? Ok. clear? Did you understand? very nice. very nice. Brake brake. Swalia Wants Break. I am just giving you a break. Isn't it? I am taking a break after reading the dictionary. unit We are coming on three. finish very quickly Have been. See method two. Add Elements Using concatenation. You need to add the element What to do and through whom? of concatenation Through. What did you just tell me? This is for Tupal Changed the element. Now, the element in the tuple Have to add on. So look at a tuple named t In which 1 2 3 is taken. Now we have What did you do? t + 4 5. Now the tuple contains two tuples. You can get it added. So here when you If you print it, it will become a tuple. In which your elements will be visible. But The existing tuple will not be subject to changes. Tuple In this you can convert tuples through concatenation You are able to add the element. Now remove If I talk about elements, then from tuple you How do you remove the element? Back to list By converting it into. Convert to list only We can also add elements by doing this. List We can also change the element by converting it into You can also remove it. See T is a tuple named t. 10 20 30 40 in tuple Is. We created a list from this tuple. of the list Remove method called. remove element Gave. and then return the list from the tuple function Passed and got the tuple printed. So the tuple There were 10 20 30 in me. There were 40. now here 10 20 40 left. Because the element with 30 It got removed. Ok? So this remove method What did he do? Removed the element. Now Modify mutable element inside tuple. Last method: Understand carefully that modify Mutable element inside tuple. which has changed element and return it to you in the tuple Have to modify. So we have the tuple here The list is inside. Understand carefully. This is a slightly important concept, 1 2 and Inside this you have given elements in a list Has happened. We can give it. Different-Different We can give values ​​of data type in tuple. Are. So this is one and two integers and this one There is a list. We have these few elements in the tuple They are given here. Ok? Now now we have