GCSE ICT Networks- LANs and WANs

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  • Networks- LANs and WANs
    • LANs
      • Local Area Networks
      • Short range e.g. one room
      • Needs the following hardware to operate:
        • A network file server
        • Terminals - individual work stations
        • Printer server
        • Wire cables/ fibre optics/ radio signals
    • WANs
      • Wide Area Network
      • Long Range network e.g. two schools.
      • Both need servers to run.
        • LANs
          • Local Area Networks
          • Short range e.g. one room
          • Needs the following hardware to operate:
            • A network file server
            • Terminals - individual work stations
            • Printer server
            • Wire cables/ fibre optics/ radio signals
      • users use a modem to connect to the WAN usually through a telephone system. satelittes and mocrowaves can be used but it is expensive.
      • used by companies with employees working away from the main site.
    • ADVANTAGES OF USING NETWORKS
      • Periphals e.g. printers can be shared amongst many users.
      • terminals are cheaper than stand alones.
      • software can be shared.
      • Untitled
    • DISADVANTAGES OF USING NETWORKS
      • Cabling can be expensive to install and replace.
      • A fault with the server will stop the whole network running.
      • Security measures are needed
      • Untitled

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