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Any Questions?. Chapter 1. Introduction to Computer Networking Topics Quick overview of why we might want networks Introduction to ideas. Perspectives on Networks. How do we connect to networks Cable Modem Office LAN Connection is ready to go. Enterprise Networking.

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Presentation Transcript

  1. Any Questions?

  2. Chapter 1 • Introduction to Computer Networking Topics • Quick overview of why we might want networks • Introduction to ideas

  3. Perspectives on Networks • How do we connect to networks • Cable Modem • Office LAN • Connection is ready to go

  4. Enterprise Networking • Created by a company to let workers communicate

  5. Small Office/Home Office (SOHO) Networking • Communicate with enterprise, or other web servers

  6. Interconnected Networks • Most enterprise networks connect to an ISP • Most ISPs interconnect • The Internet

  7. Flinstones Network • How do users share date before networks • Sneakernet • How can we interconnect computers • Two-wire Networking cards • Send Wire • Receive wire

  8. Sharing Data • Send transmit from one PC to all PCs • Multi-port Repeater • Hub

  9. Sharing Data • Now all PCs see all data • Need addressing so PC knows when to display information

  10. Distributing Data

  11. Making it easy • Use names instead of number addresses

  12. Summing Up • Ethernet cards in each computer • Cards have unique numeric addresses • Ethernet cables connect cards to hubs • Hubs repeat the data to other ports • Cabling is typically in a star configuration • Users use names, but the computer speaks in addresses

  13. Any Questions?

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