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The internet
 

The internet

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    The internet The internet Presentation Transcript

    • The Internet
      What it is and how it works
    • What is the Internet?
      Globally interconnected networks of computers
      1969: 4 connected computer hosts
      2010: Hundreds of millions
    • The Information Superhighway
      • Allows us to generate, exchange, share, and manipulate information
      • Instant connection at low cost
    • An artist’s interpretation of the internet.
    • A brief history of the internet
      1957: Sputnik launched, US creates DARPA
      1969: ARPANET goes online (UCLA, Stanford, UCSB, University of Utah)
      1972: Email adapted for internet
      1973: TCP/IP protocols developed
      1979: USENET started
      1988: First T1 lines become the internet backbone
      1990: ARPANET taken out of service
      1992: World Wide Web
      1999: Wi-fi standardized
      2005: One Laptop Per Child Project begins
    • Internet Infrastructure
      Not owned or controlled by any single corporation or government.
      Internet backbone: network of high capacity communication links.
      ISP: internet service provider (Comcast, etc.)
      NAP: network access point
    • Connecting to the Internet
    • How to ping:
      Ping: (Packet Internet Groper)
      Ping: time of round trip packet exchange
      Open cmd.exe
      Type ping and the web address