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LAN (Local area network)

LAN (Local area network). LAN. ADVANTAGE. DISADVANTAGE. Special security measures are needed to stop the users from using programs and data that they should not have accessed to. Network are difficult to set up and need to be maintained by skilled technicians.

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LAN (Local area network)

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  1. LAN (Local area network)

  2. LAN ADVANTAGE DISADVANTAGE Special security measures are needed to stop the users from using programs and data that they should not have accessed to. Network are difficult to set up and need to be maintained by skilled technicians. If the file servers develop a serious fault, all the users are affected, rather than just one users in the case of a standalone machine. It needs to be on all the time. • Workstations can share peripherals devices like printers. Cheaper that providing a printer for each computer. • Workstations do not necessary need their own hard disk or CD-ROM drives which make them cheaper to buy than stand-alone PC. • User can save their work centrally on the network’s file server. This means that they can retrieve work from any workstation on the network. • They don’t need to go to the same workstation again.

  3. WHAT IS CABLED LAN? • THE THREE TYPES OF CABLE: • Optical Fibre Cables • Patch Cable • Coaxial Cables

  4. Hardware that is essential to connect to LAN • A HUB switch to connect a range of computers • A router to distribute internet connection to the computers • A network interface card • A form a Cabling

  5. LAN topologies

  6. 3 structure of topologies • Bus Topology • Star Topology • Ring Topology

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