Network Resources

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  • 1. Networking Basics what you need to know…
  • 2. What is a network?
    • Physically a network consists of computers and other devices exchanging data.
    • The data can be transmitted through wires or broadcasted wirelessly.
    • Devices such as switches and routers and aid in the delivery of data by directing traffic and improving flow.
    • The network also includes the software through which the computer communicate.
  • 3. The Main Types of Networks
    • Local Area Network (LAN)
    • Wide Area Network (WAN
  • 4. LAN
    • A LAN is network connecting devices over a relatively small physical distance
    • Examples in our school:
      • The file sever delivers your files over a LAN
      • The application server delivers applications to workstations over the LAN
      • These resources cannot be accessed outside of the building.
  • 5. WAN
    • A relatively large network connecting devices.
    • The most prominent example is the Internet. (The World Wide Web is a subset of the Internet)
    • Another example is the public switched telephone network.
    • These resources can be accessed through any computer that is connected to the Internet.
  • 6. LAN’s vs WAN’s
    • WAN’s typically used a shared infrastructure while LAN’s are typically owned and operated by a single entity. (in our case – the school system.)
  • 7. Network Infrastructure
    • Networks are traditionally connected by wires, routers and switches
    • Wired networks are expensive and difficult to upgrade, improve and repair
    • Wireless networks are easier to install and upgrade
  • 8. More about Wireless Networks
    • Both LAN’s and WAN’s can be wireless
    • The Internet is predominately wired network, but many users access it wireless LAN.
  • 9. Anywhere
    • Vast and comprehensive wireless networks will allow us to:
    • “… realize the vision of location independence for the exchange of data… ”
    • Jeff Huskamp
    • Chief Information Office
    • East Carolina University
    • This means you will not need to be tied to a physical location to access networked resources
  • 10. The truth about networks…
    • While technically a network connects machines, in reality networks are used to connect people.
  • 11. references
    • Interview with Jeff Huskamp
    • http://portfolio. coe . ecu . edu /students/wsh0429/networking/interview.html
    • Local Area Network Basic Components