The internet
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The internet Presentation Transcript

  • 1. The Internet
    What it is and how it works
  • 2.
  • 3. What is the Internet?
    Globally interconnected networks of computers
    1969: 4 connected computer hosts
    2010: Hundreds of millions
  • 4.
  • 5. The Information Superhighway
    • Allows us to generate, exchange, share, and manipulate information
    • 6. Instant connection at low cost
  • An artist’s interpretation of the internet.
  • 7. 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
  • 8. 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
  • 9. Connecting to the Internet
  • 10. How to ping:
    Ping: (Packet Internet Groper)
    Ping: time of round trip packet exchange
    Open cmd.exe
    Type ping and the web address