1 00:00:01,860 --> 00:00:03,210 Hey, guys, what's up? 2 00:00:03,630 --> 00:00:09,180 So today we will get a deeper understanding of how the data is actually stored in our system. 3 00:00:10,410 --> 00:00:13,080 So how are positive numbers stored? 4 00:00:13,590 --> 00:00:16,200 How are negative numbers stored? 5 00:00:16,650 --> 00:00:18,420 How are my characters? 6 00:00:20,720 --> 00:00:26,510 Stored and how the floating point numbers stored in our system. 7 00:00:27,140 --> 00:00:30,440 So let us first talk about floor positive numbers. 8 00:00:32,290 --> 00:00:32,550 OK. 9 00:00:32,630 --> 00:00:43,580 So when I write and I was 10, I will get four bytes of memory space and I will write down here. 10 00:00:44,660 --> 00:00:49,910 But obviously, this is not correct because the computer doesn't understand decimal numbers. 11 00:00:50,270 --> 00:00:52,920 It only understand binary zero and one. 12 00:00:53,660 --> 00:01:02,330 So I will get four by of space and I will write something like zero one zero zero one zero one and so 13 00:01:02,330 --> 00:01:02,480 on. 14 00:01:03,230 --> 00:01:03,460 OK. 15 00:01:03,830 --> 00:01:08,120 So for storing the positive numbers, the approach is very easy. 16 00:01:08,450 --> 00:01:15,310 Just convert positive numbers into their binary equal end. 17 00:01:16,400 --> 00:01:20,420 And we will store that by number here, for example. 18 00:01:21,350 --> 00:01:23,670 And I was wondering 123. 19 00:01:24,800 --> 00:01:33,590 So I may get four by itself, memory space and we will store the binary code length of 123. 20 00:01:34,040 --> 00:01:37,760 Suppose the biometrical end of wondering the three is one zero zero one zero one. 21 00:01:38,210 --> 00:01:39,690 So this will be stored. 22 00:01:40,700 --> 00:01:40,940 OK. 23 00:01:41,420 --> 00:01:45,210 So when I have one to store and I was five, I want to store five. 24 00:01:45,590 --> 00:01:47,330 I will store binary Quillin. 25 00:01:48,080 --> 00:01:49,460 I will store one zero one. 26 00:01:49,890 --> 00:01:50,150 OK. 27 00:01:50,660 --> 00:01:51,450 Four bytes. 28 00:01:53,030 --> 00:01:55,940 OK, so storing the positive numbers is very easy. 29 00:01:56,250 --> 00:01:58,390 Just store their binary equivalent. 30 00:01:59,390 --> 00:02:00,890 How to store negative numbers. 31 00:02:01,550 --> 00:02:02,370 So we will see. 32 00:02:02,500 --> 00:02:06,560 And sometime basically we will store or we will, we will see how to store negative numbers. 33 00:02:06,650 --> 00:02:07,430 And next we do. 34 00:02:09,380 --> 00:02:12,530 So now let us talk about how to store characters. 35 00:02:13,520 --> 00:02:23,500 So when I write Cassie, it was a I will get one bytes of memory space and I will store it here. 36 00:02:24,730 --> 00:02:29,300 But again, this is an artifact computer industry, not only binary zero and one. 37 00:02:30,010 --> 00:02:35,890 So what happened is each character has been assigned some Wickwire value, some integer value. 38 00:02:36,220 --> 00:02:36,470 OK. 39 00:02:36,760 --> 00:02:42,670 So each character has been assigned some integer values known as Wickwire Values. 40 00:02:47,520 --> 00:02:57,450 So the fair value of small is 97, B is ninety eight, C is ninety nine and so on. 41 00:02:57,900 --> 00:03:06,060 Similarly, the value of capital is 65, B is 66 and so on. 42 00:03:08,160 --> 00:03:11,480 Similarly, the value of character one is for. 43 00:03:11,910 --> 00:03:12,600 And so on. 44 00:03:13,510 --> 00:03:16,260 OK, so storing characters are very easy. 45 00:03:16,570 --> 00:03:22,530 Just we will store the Oscar value of the corresponding character. 46 00:03:23,210 --> 00:03:23,450 OK. 47 00:03:23,730 --> 00:03:30,160 So each character has been assigned some Wickwire value and did ask a value will be converted into binary. 48 00:03:30,990 --> 00:03:32,940 And then we will store the binding number. 49 00:03:34,200 --> 00:03:36,000 For example, if you want to store a character. 50 00:03:36,850 --> 00:03:40,700 So closely, it will be converted to 97. 51 00:03:40,830 --> 00:03:43,170 With the help of the Oskay will lose. 52 00:03:44,910 --> 00:03:46,150 So this is Oskay table. 53 00:03:48,960 --> 00:03:51,870 And then this 97 will be converted to binary. 54 00:03:52,770 --> 00:03:55,330 And that binary will be stored in one by itself. 55 00:03:55,350 --> 00:03:56,850 Memory space. 56 00:03:58,110 --> 00:04:02,370 OK, so now let's talk about how the floating point numbers are stored. 57 00:04:05,120 --> 00:04:11,320 So how the floating by numbers are stored, for example, are flawed. 58 00:04:12,590 --> 00:04:15,270 If it was one point thirty. 59 00:04:16,880 --> 00:04:21,830 So what we will do wonder indoor temperate about minus two. 60 00:04:22,760 --> 00:04:25,320 So we all know float is a four bytes. 61 00:04:25,880 --> 00:04:27,250 So that is 22 bits. 62 00:04:27,830 --> 00:04:31,780 So 26 bits will stored 123. 63 00:04:32,210 --> 00:04:36,540 And the remaining six, six bits may be used to store minus two. 64 00:04:37,850 --> 00:04:39,650 We know how to store a positive number. 65 00:04:40,170 --> 00:04:45,650 We will convert it into binary and then we will store it and then we will store here. 66 00:04:46,400 --> 00:04:48,260 Now how to store negative numbers. 67 00:04:48,920 --> 00:04:51,330 I already told you we will see it in the next read. 68 00:04:53,220 --> 00:04:53,460 OK. 69 00:04:53,900 --> 00:04:55,370 So how does store negative numbers? 70 00:04:55,580 --> 00:04:57,590 We will see it in the next video. 71 00:04:58,880 --> 00:05:02,590 Now let us revise surveils during the pause. 72 00:05:02,590 --> 00:05:11,100 You're doing numbers just to convert into binary for storing the characters with the help of escape 73 00:05:11,110 --> 00:05:13,850 table ASCII values, which are integers. 74 00:05:14,240 --> 00:05:20,050 And then we will convert that in Beijing to binary and stored and four floating. 75 00:05:20,900 --> 00:05:25,000 I have 26 bids plus six minutes. 76 00:05:25,970 --> 00:05:27,050 These are positive. 77 00:05:27,650 --> 00:05:28,710 So we know how to store. 78 00:05:29,120 --> 00:05:32,560 And for the six bids, we will see it in the next video. 79 00:05:32,660 --> 00:05:32,960 Okay. 80 00:05:33,980 --> 00:05:35,300 Binary form. 81 00:05:37,140 --> 00:05:40,520 Now, in the next video, we will learn how to store negative numbers. 82 00:05:41,040 --> 00:05:41,310 OK. 83 00:05:41,610 --> 00:05:42,930 So this is it for this video. 84 00:05:43,050 --> 00:05:43,860 Thanks for watching.