Teh Intarw3bs

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Teh Intarw3bs. Or becoming better informed users of the Internet. Networks. 146 BC - Greeks use torch signals 1830s - Electric telegraph 1870s - Telephone 1920s - AM radio 1930s - Television 1960s - FM radio 1970s - Computer networks. The Internet?. A network of networks - PowerPoint PPT Presentation

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<ul><li><p>Teh Intarw3bsOr becoming better informed users of the Internet</p></li><li><p>Networks146 BC - Greeks use torch signals1830s - Electric telegraph1870s - Telephone1920s - AM radio 1930s - Television1960s - FM radio 1970s - Computer networks</p></li><li><p>The Internet?A network of networksCompanies, schools have their own networksE-mail, the World Wide Web, FTP are ways of sending info over the Internet</p></li><li><p>Why the Internet?Military: ARPANET 1969First version of todays Internet in 1983</p></li><li><p>The WWWOne of many services on the InternetA series of documents connected through linksStarted ~1990Accessed through a web browser</p></li><li><p>HTML?Hypertext Markup LanguageDefines the structure of a web pageThis is a headingA sub-headingThis is a paragraph!</p></li><li><p>How does the WWW work?I figure out the address of where the info I want isI make a request to the serverThe server sends back my info(A server is any computer that can send out data in response to a request)</p></li><li><p>Blue Scholars on MySpacewww.myspace.com//Blue Scholars on MySpace Music - Free Streaming MP3s, Pictures &amp; Music DownloadsMySpace.Ads = {};MySpace.Ads.Account = {"Type":"7"};MySpace.Ads.BandType = {"Genre1":"21","Genre2":"22","Genre3":"92","LabelType":""};MySpace.Header = {}; MySpace.Header.IsTrueGlobalHeaderEnabled = false; MySpace.Header.Navigation = {};MySpace.Header.Navigation.OnAfterRender = function(){};MySpace.ProfileClientContext = {"ProfileType":7,"ProfileVersion":1,"PrivateToUser":false};</p></li><li><p>IP addressesEvery computer on the Internet has a unique address (ex.: 74.125.67.100)Domain Name Servers (DNS) map names to addressesYou: 67.171.16.158DNS server: 208.67.222.222</p></li><li><p>Searching</p></li><li><p>A bunch of links and wordsCrawlers or spiders look at pagesExtract all words and linksStores them in a table, much like the index of a bookWhen you make a query, its looked up in the table</p></li><li><p>Page RankingA page is important if a lot of important pages link to itEntire Internet gets to vote</p></li><li><p>Next few daysCreating web pages lab - hit and run introNetworking lab - hit and run introFINAL PROJECT ~2.5 weeks to work on technology of your choice! Individual or in pairs ~5 min presentation on last day.</p></li></ul>