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The Net, the Web, & Hypertext and Creating your Web pages

What we’ll cover today How to create your own Web pages The Net, the Web, and Hypertext (most from Text reading) How the Web and hyperlinks work. The Net, the Web, & Hypertext and Creating your Web pages. Good, comprehensive, and comprehensible textbook coverage (Chap 6 A, B, C)!

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The Net, the Web, & Hypertext and Creating your Web pages

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  1. What we’ll cover today How to create your own Web pages The Net, the Web, and Hypertext (most from Text reading) How the Web and hyperlinks work The Net, the Web, & HypertextandCreating your Web pages

  2. Good, comprehensive, and comprehensible textbook coverage (Chap 6 A, B, C)! Consequently, much will not be covered in lecture. Count on multiple-choice exam questions ! Know what each is (and what it is not!) and the difference between them. Note: Pay particular attention to figures: 6-2 and 6-9 Also Net, Web, and Hypertext

  3. HTML and HTML tags Web browsers and servers (& know the difference) Web plug-ins HTTP (a protocol) Cookies and privacy Web page authoring programs Web page components (I’ll cover some shortly) Stylesheets (just what they are) Links, buttons, hotspots Tables and frames DHTML; XML Javascript and Java applets; ActiveX Also, be sure you can define:

  4. Interconnected networks Computers connected to a loose association of thousands of different networks, run by different companies and using different technologies, all connected together in a giant network of networks. 1996: Internet becomes known to general public… In 1995: only 44% of those surveyed said they had even heard of it. by NOV 1996: 93.5% For interesting statistics, visit:www.nua.ie/surveys/ What is the Internet?

  5. The Internet: • information container & delivery mechanism; • supports on-line communities/communications. Plenty of URBAN LEGENDS and SCAMS: SCAMBUSTER SITES: www.scambusters.org www.urbanlegends.com hoaxbusters.ciac.org www.snopes.com

  6. What is the WEB? • It is not the Internet ! It is a subset; a way to use the Internet to share documents. • World Wide Web • A high-profile example of a hypertext • Resource retrieval system of linked computer-based documents that allows user to click on a region (anchor or hyperlink) to obtain yet another document. • Hypermedia: information in different formats: • Can link to images, sound files, animations, text.… • Click on a hyperlink: request for information

  7. Web needs it own protocol for requesting, providing, & displaying WEB information (Web pages) correctly: • http: Hypertext transport protocol • a protocol layered on top of the Internet’s protocol. • To ensure successful transmission of request & transmission of the data, in response. • Web servers run http-compatible serversoftware. • Your PC runs client software that can request, interpret, and display the transmitted information • Browsersoftware

  8. What does clicking on a web page hyperlink do? Browser (client) software makes a request to server software, over the network. Server software sends requested information back to your browser. Browser loads the information to local RAM and to your local hard drive. Term for that? Now what happens if you click on the same URL? What happens if you select RELOAD or REFRESH?

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