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The Internet and the World Wide Web

The Internet and the World Wide Web. Communications around the globe. Origins of the Internet. Sputnik Advanced Research Project Agency (ARPA) ARPANet. Technologies behind the Internet. Internet backbone Internet protocols Domain Names Packets and Routers Internet Software.

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The Internet and the World Wide Web

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  1. The Internet and the World Wide Web Communications around the globe

  2. Origins of the Internet • Sputnik • Advanced Research Project Agency (ARPA) • ARPANet

  3. Technologies behind the Internet • Internet backbone • Internet protocols • Domain Names • Packets and Routers • Internet Software

  4. Internet Backbone • Internet Hardware • T3 Lines • Satellites • Switching Stations • Communication Towers • http://www.caida.org/tools/visualization/walrus/gallery1/ • Network Service Providers (NSP) • Point of Presence (POP)

  5. Internet Protocols • Packets • Piece of file • Source address • Destination address • Total # of packets & # of this packet • Transmission Control Protocol (TCP) • Internet Protocol (IP) - 206.155.180.4 • Static • Dynamic • Other Internet Protocols • FTP • HTTP

  6. Domain Names • IP number representation • Internet Corporation for Assigned Names and Numbers (ICANN) • Domain Name System (DNS)

  7. Packets & Routers Routers manage network traffic and determine the fastest route for a packet to take

  8. Internet Software • Client / Server • Type of server • Web • File • E-mail • Peer to Peer • Port

  9. Connecting to the Internet • Internet Service Provider (ISP) • Dial-up • Cable modem • Digital subscriber line (DSL) • Satellite modem

  10. World Wide Web Origins • Vannevar Bush - As We May Think • Ted Nelson - Project Xanadu • Douglas Englebart - Augmented Research Center • Tim Berners-Lee - CERN • Mark Andreessen & Eric Bina - Mosaic

  11. WWW Basics • Hyperlink • Hypertext Transfer Protocol (HTTP) • Web Server • Uniform Resource Locator (URL) • Protocol://www.domainname.TLD/directories/filename.html

  12. Web Browsers • Netscape • Internet Explorer • Foxfire • Opera

  13. Creating Web Pages • Web Page Language • Hypertext Markup Language (HTML) • Extensible Markup Language (XML) • Tags - <H1>Header Size 1</H1> • Editors and web page generators • Cookies • Plug-ins

  14. Finding Information on the Web • Search Engines • Spider • Web crawling • Google • Meta Search Engines • Dogpile • Directories • Best of the Web • Portals • Yahoo

  15. Other forms of Internet Communications • E-mail • Emoticons - ;-) • Acronyms - TTYL, IIRC, BTW • Usenet • Instant Messages • Chat • Weblogs - blogs • Voice & Video Communications

  16. Specials Uses of the Internet • Education • E-Commerce • Travel • Employment • Entertainment • Information/Research • News

  17. Future of the Internet • Internet2 • High speed backbone • Web 2 • YouTube • http://youtube.com/watch?v=GA51hoztdNs • http://youtube.com/watch?v=3hFQmdpujxU

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