ITEC 3020 Lecture Notes - Lecture 2: Hypertext Transfer Protocol, Background Process, Hostname

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Document Summary

Internet: world-wide network of computer networks, tcp/ip hides differences among devices connected to the internet, ip: unique address that consisted of 32 bits and now is 128, orgs are assigned groups of ips for their computers. Www: possible solution to the increase no. of different protocols being used on the internet, document form: hypertext, hypermedia: text, images, sound, etc, web vs internet, internet: global network of networks, web: collection of data, uses http protocol. Web browsers: mosaic: first to use gui, browsers initiate, servers react, requests for existing docs are through http (hypertext transfer protocol) Includes virtual document trees and virtual hosts: proxy servers, apache is an open source, fast and reliable server which is maintained by editing its configuration file. Lecture 2: xhtml extensible markup language: makeup language: specifies the format, css: separates content from presentation. Elements:

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