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Unit 3

Unit 3. The Internet and the World Wide Web. What is the Internet?. Connected computers Started in 1960s! Used by gov’t, education, military Each contains info. Other Terms for Internet. The Net Info Superhighway Cyber-space. Internet vs. WWW. Internet Physical make-up.

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Unit 3

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  1. Unit 3 The Internet and the World Wide Web

  2. What is the Internet? • Connected computers • Started in 1960s! • Used by gov’t, education, military • Each contains info

  3. Other Terms for Internet • The Net • Info Superhighway • Cyber-space

  4. Internet vs. WWW Internet • Physical make-up World Wide Web • Collection of info But used interchangeably

  5. What to Do on Internet • Electronic mail • Information • Shopping • Download Programs • Games/Entertainment • Discussion Groups

  6. Format of the Web • Web Site • Home page • URL • Hypertext links

  7. How to Access the Web • Use a Browser • Netscape • Internet Explorer • NSCA Mosaic • Use Unix (pros)

  8. URL Addresses

  9. Browser Features • Open a site with URL • Back & forward • History • Bookmarks • Options: Graphics off

  10. Search Engines • Yahoo • AltaVista • Infoseek • Excite

  11. Shopping on the Web • Shopping Malls • Security issues • E-cash

  12. New Developments • Old: Text & Graphics • Sound • Video & Animation • 3-D Worlds • Java (cross-platform)

  13. Info Transfer Terms • Upload • Download

  14. How to Connect • Computer • Program (browser) • Modem • ISP

  15. Private Local Regional National Commercial AOL Compuserve Prodigy Kinds of ISPs Internet Service Provider

  16. How Info Transfers • Backbone (spine) • Router (nerves) • Packets (message) • TCP/IP (language) • Download Information

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