WEBVTT 00:00.380 --> 00:05.720 Hello, my name is Tayfun, and in this lecture we are going to learn about the and logic. 00:05.750 --> 00:10.840 So today we are embarking on a journey to unravel the fascinating world of logic. 00:10.850 --> 00:16.720 And this is a concept that brings a touch of teamwork to the realm of computers. 00:16.730 --> 00:23.750 So imagine a magical lock that only opens when two specific keys are used together. 00:23.780 --> 00:26.400 That's the heart of an and logic. 00:26.420 --> 00:33.350 So now we will dive into the intricacies of this logic gate and uncover its vital role. 00:33.380 --> 00:34.250 The realm of. 00:35.300 --> 00:45.470 So think of and logic as a pair of these steel gates, each requiring a key to open. 00:46.620 --> 00:49.810 But these keys come in two colors. 00:49.830 --> 00:54.480 The one is silver in this case, right? 00:54.480 --> 00:56.700 It My driving skills is not that good. 00:56.730 --> 01:00.960 But I will try this as hard as I can, so. 01:02.550 --> 01:03.000 Here. 01:05.790 --> 01:10.230 So here we have the silver key. 01:11.460 --> 01:17.700 And we throw the here and we also have this gold key. 01:21.850 --> 01:23.710 So this is our keys here. 01:23.860 --> 01:31.570 So here to unlock these gates, you need a silver key for one gate. 01:32.320 --> 01:36.220 And the gold key for the other, right. 01:36.370 --> 01:44.080 So only when both keys are inserted simultaneously will the gate swing open, granting access. 01:44.080 --> 01:51.770 So if either key is missing or if both keys are the same color, the gates remain tightly closed. 01:51.790 --> 01:59.860 So in the world of computers and logic acts as a digital partnership that ask a specific question. 02:00.810 --> 02:11.910 So the basically this and logic asks just want this this very simple and specific question are. 02:29.750 --> 02:33.200 Are both things true? 02:37.010 --> 02:38.770 Write this. 02:38.780 --> 02:41.640 Ask just this question here. 02:41.660 --> 02:42.440 That's it. 02:42.470 --> 02:48.820 So if the answer is yes, then it signifies that the both things are true. 02:49.220 --> 02:53.550 If the answer is no, then at least one of the things is false. 02:53.570 --> 03:01.240 So and logic empowers the computers to make decisions based on the joint validity of the two conditions. 03:01.250 --> 03:04.130 So imagine you have a two loyal guards. 03:04.160 --> 03:08.720 This is a guard A and guard B, each of with lantern in their hands. 03:08.720 --> 03:12.080 They hold a power to illuminate a path. 03:12.230 --> 03:19.640 Introduce the logic to the scenario, and logic acts as a grand illuminator, lighting the way only 03:19.640 --> 03:23.690 when both guards have their lanterns ablaze. 03:23.780 --> 03:33.020 So if a guard a lantern shines and a guard B lantern casts its glow, the grand illuminator beams brightly. 03:33.050 --> 03:39.690 However, if a either guard or guard B has their lantern unlit, in this case, it's zero. 03:39.960 --> 03:48.930 But lit is glowing is one, then the illuminator remains dim, so we can also have a consider mythical 03:48.930 --> 03:51.690 bridge guarded by a vigilant sphinx. 03:51.870 --> 03:55.920 To cross the bridge, you need to answer the two riddles correctly. 03:56.010 --> 04:00.390 Riddle A and riddle B Only when both riddles are answered accurately. 04:00.390 --> 04:01.320 You can. 04:02.040 --> 04:03.660 Then you can proceed, right? 04:03.930 --> 04:13.020 So if either A or riddle B is answered incorrectly, the bridge remains inaccessible and the Sphinx 04:13.020 --> 04:14.510 watchful gaze persists. 04:14.520 --> 04:20.820 So and Logic finds its application in various computer scenarios, such as ensuring the fulfillment 04:20.820 --> 04:24.060 of multiple conditions before performing an actions. 04:24.060 --> 04:29.100 And just like the synchronized keys required to unlock our mystical gates. 04:29.100 --> 04:36.720 So add logic ensures that both conditions are met before granting access or triggering a specific route. 04:36.930 --> 04:45.390 So here it's actually just a bit we will be dealing with is so I will write some diagram here so you 04:45.390 --> 04:49.080 will understand better and here. 04:49.320 --> 04:50.880 So we will need to. 04:52.330 --> 04:54.940 Actually, we don't need this here, so. 04:57.240 --> 04:58.080 Just need to. 05:00.950 --> 05:03.460 The brush size here and that's it. 05:03.640 --> 05:11.560 So here we will delete this brush off and here we will create some diagram. 05:11.740 --> 05:13.450 For illustrative purposes. 05:13.540 --> 05:14.800 So one. 05:15.550 --> 05:16.220 But let's. 05:16.700 --> 05:18.980 So this is one. 05:19.580 --> 05:20.210 You. 05:21.030 --> 05:22.430 Re here. 05:22.440 --> 05:24.740 So this is our first two and. 05:25.320 --> 05:25.750 Right. 05:26.390 --> 05:26.540 And. 05:28.250 --> 05:29.330 Again here. 05:34.700 --> 05:37.100 And again, we will add another here. 05:37.100 --> 05:39.240 Actually, we don't need to add here. 05:40.170 --> 05:40.770 Does this. 05:44.920 --> 05:45.770 And that's it. 05:45.790 --> 05:47.710 So now what we're going to do is. 05:48.420 --> 05:50.010 This is our A. 05:50.770 --> 05:51.670 Different color. 05:52.480 --> 05:53.640 Uh, a. 05:54.520 --> 05:55.240 Be. 05:55.390 --> 05:57.970 And this is our output, right? 06:04.520 --> 06:14.900 So here, if our A is true and B is true as well, then our output will be one. 06:15.140 --> 06:21.290 If our A is zero and B is zero as well, then our output will be one again. 06:21.770 --> 06:27.740 But if our A is one and B is zero, our output will be zero. 06:27.740 --> 06:34.280 And if our A is zero and B is one, our output will be zero again. 06:34.280 --> 06:40.970 So as we explained here in this cases, our output is set. 06:41.860 --> 06:43.900 Here again, sad. 06:43.990 --> 06:53.430 But in these cases, these are output as this one output here, these are happy. 06:53.440 --> 06:54.070 Right. 06:54.160 --> 06:57.100 And that's it with our and logic. 06:57.280 --> 07:01.810 There you have it and extensive exploration of and the logic. 07:01.810 --> 07:07.720 So this is a captivating concept that adds a sense of collaboration to the world of computing. 07:07.810 --> 07:14.710 Think of it as a harmonious partnership between two keys need to unlock a set of gates. 07:14.710 --> 07:21.430 As you delve further, remember that and logic enables computers to make decisions based on the joint 07:21.430 --> 07:23.140 root of two inputs. 07:23.140 --> 07:29.950 So keep your curiosity kindled fellow adventurers as you venture deeper into the cooperative world of 07:29.950 --> 07:33.970 logic, the ever evolving realm of computers.