Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 00:00:01,440 --> 00:00:07,800 So as a reminder, this was the situation before the cloud, we had to take care of ourselves on all 2 00:00:07,800 --> 00:00:13,150 aspects of the server management and also, of course, and databases, networking and so on. 3 00:00:13,620 --> 00:00:20,950 In addition, we had this problem that we had a lot of wasted money going for an unused compute power. 4 00:00:21,900 --> 00:00:23,880 And here comes the cloud. 5 00:00:24,810 --> 00:00:27,000 And what exactly is the cloud? 6 00:00:27,810 --> 00:00:31,620 Will the unscientifically definition of the cloud is this. 7 00:00:32,430 --> 00:00:40,220 The cloud is compute networking, storage and other services managed by someone else. 8 00:00:40,950 --> 00:00:47,190 That means that they're all around the world, huge data centers filled with servers, networking, 9 00:00:47,190 --> 00:00:53,000 storage and all other things that someone else is responsible for them to work properly. 10 00:00:54,150 --> 00:00:57,140 And that brings us to cloud providers. 11 00:00:57,510 --> 00:00:58,650 What a cloud provider. 12 00:00:59,370 --> 00:01:03,270 Well, these are companies who build those huge data centers. 13 00:01:03,550 --> 00:01:11,130 They fill it with servers, networking, cooling, electricity, etc. and also they design and install 14 00:01:11,310 --> 00:01:12,590 value services. 15 00:01:13,110 --> 00:01:17,500 And then after they do that, they make it publicly accessible. 16 00:01:18,570 --> 00:01:25,950 So basically, we have a huge server farm that someone else is taking care of and we can just come and 17 00:01:25,950 --> 00:01:26,370 use it. 18 00:01:26,760 --> 00:01:28,350 How exactly we will see in a minute. 19 00:01:28,890 --> 00:01:31,640 And here is an example of such a data center. 20 00:01:32,010 --> 00:01:36,360 This specific data center is Microsoft Outlook Data Center in Washington. 21 00:01:37,230 --> 00:01:41,310 And it also must be said that this is one of the smaller data centers. 22 00:01:41,610 --> 00:01:46,060 Most of Azure and other public cloud data centers are much larger. 23 00:01:46,710 --> 00:01:53,150 So this is how it looks from the outside and this is how it looks in the inside. 24 00:01:53,610 --> 00:01:59,070 This specific data center is, again, of Microsoft Azure and it is located in the Netherlands. 25 00:01:59,370 --> 00:02:04,560 Now, in a typical data center similar to this, there are usually hundreds of thousands of physical 26 00:02:04,560 --> 00:02:05,100 servers. 27 00:02:05,430 --> 00:02:07,040 There are some larger ones. 28 00:02:07,050 --> 00:02:08,370 There are some smaller ones. 29 00:02:08,490 --> 00:02:10,320 But this is the ballpark. 30 00:02:10,530 --> 00:02:16,200 Now, these data centers, as we said before, contain not only servers, networking, storage, etc., 31 00:02:16,380 --> 00:02:19,060 but they also have cloud services. 32 00:02:19,380 --> 00:02:21,480 Now, what exactly are cloud services? 33 00:02:22,260 --> 00:02:28,020 Well, clouds are huge and the competition is fierce, as we will see later in this section. 34 00:02:28,020 --> 00:02:33,960 And that means that the cloud providers offer a lot of additional services in addition to just Billabong's 35 00:02:33,960 --> 00:02:41,550 virtual machines and networking, most of them offill, also AIU, as in artificial intelligence, Iot 36 00:02:41,700 --> 00:02:48,320 as in Internet of Things capabilities, which we will talk about later in this course and lots more. 37 00:02:48,600 --> 00:02:53,540 In fact, a typical cloud provider or fills hundreds of cloud services. 38 00:02:53,850 --> 00:02:58,790 Naturally, we want to go over all of those, but we will discuss the most important ones. 39 00:03:00,000 --> 00:03:06,200 So in the cloud era, if you need a server, you can just created in the cloud within minutes. 40 00:03:06,270 --> 00:03:08,490 Of course, we will see exactly how to do that. 41 00:03:08,940 --> 00:03:10,890 We can use it as we wish. 42 00:03:11,250 --> 00:03:13,890 We pay only for what we use. 43 00:03:14,100 --> 00:03:15,210 We can shut it down. 44 00:03:15,300 --> 00:03:16,200 We're not needed. 45 00:03:16,200 --> 00:03:18,270 And then, of course, we stop paying for it. 46 00:03:18,600 --> 00:03:25,230 And this virtual machine server is automatically maintained, patched, secured and monitored by the 47 00:03:25,230 --> 00:03:26,070 cloud provider. 48 00:03:26,280 --> 00:03:31,550 All of these are tasks that we and our team shouldn't do anymore. 49 00:03:32,130 --> 00:03:35,610 So that was the cloud or the introduction to the cloud. 50 00:03:35,860 --> 00:03:38,730 And now let's move on to the next lecture. 5124