1 00:00:01,460 --> 00:00:09,980 You are out now another basic term, you are ill, so you are ill is an abbreviation for Universal Resource 2 00:00:10,160 --> 00:00:11,120 Locator. 3 00:00:11,690 --> 00:00:19,430 Your URL is generally called a Web address because with you URL, you can retrieve any resource at a 4 00:00:19,430 --> 00:00:20,710 specific location. 5 00:00:21,530 --> 00:00:29,480 So if you type your URL into your browser's address bar, the browser will analyze this URL and detect 6 00:00:29,480 --> 00:00:33,290 where to go in order to find the resource that you have requested. 7 00:00:34,310 --> 00:00:41,290 I said resource, but you probably think of it as a Web page, an image, a video or a PDF file or something 8 00:00:41,290 --> 00:00:41,560 else. 9 00:00:42,310 --> 00:00:50,950 So a typical URL could have a form that looks like this, which indicates a protocol http. 10 00:00:51,930 --> 00:00:59,530 A hostname w w w dot example, dot com and a file name indexed dot age HTML. 11 00:01:00,270 --> 00:01:06,090 So when we talk about you are we should also look at the term you are I. 12 00:01:07,480 --> 00:01:17,320 So you are I is short for Uniform Resource Identifier, so it's more general incomprehensive term and 13 00:01:17,320 --> 00:01:20,900 defines the name and the location of a resource on a network. 14 00:01:21,280 --> 00:01:27,670 I'd say the Internet or the Web, although both terms are kind of used interchangeably in the field. 15 00:01:28,330 --> 00:01:28,690 Are you? 16 00:01:28,690 --> 00:01:31,930 URL is a specific type of urai. 17 00:01:32,560 --> 00:01:38,380 So you are I address has a few parts to declare the name and the location of a resource. 18 00:01:39,660 --> 00:01:47,700 Schema or protocol component, and it should not be empty or non-empty and followed by a colon. 19 00:01:48,420 --> 00:01:55,000 Some examples of popular schemes include http https, ftp file. 20 00:01:55,440 --> 00:02:03,000 The authority component is an optional part and it's actually preceded by two slashes, a user name 21 00:02:03,000 --> 00:02:08,410 and an optional password preceded by a colon, followed by an at symbol. 22 00:02:09,090 --> 00:02:13,440 Now the user info subcomponent is deprecated for security reasons. 23 00:02:13,590 --> 00:02:14,490 Post component. 24 00:02:15,420 --> 00:02:23,790 Consists of either registered name or an IP address path component consisting of a sequence of path 25 00:02:23,790 --> 00:02:31,110 segments separated by a slash a path component may resemble or map exactly to a filesystem path, but 26 00:02:31,110 --> 00:02:39,630 doesn't always imply a relation to one query component preceded by a question mark containing a query 27 00:02:39,630 --> 00:02:47,700 string of nonhierarchical data syntax is not well defined, but by convention it's most often a sequence 28 00:02:47,700 --> 00:02:54,480 of attribute value pairs separated by a delimiter fragment component preceded by a hash. 29 00:02:54,780 --> 00:03:00,780 And the fragment contains a fragment identifier providing direction to a secondary resource, such as 30 00:03:00,780 --> 00:03:05,190 a section heading in an article identified by the remainder of the You Are.