• Usually owned by the same organization that owns the attached devices.
  • Internal data transfer rate are much higher than in WAN (wide area network) (more than 10MB to 100MB)
  • Usually uses a broadcast network approach.
  • At each station there is a transmitter/receiver that communicates over the shared medium.
  • Switch LAN and ATM (Asynchronous Transfer Mode ) are being introduced.

Applications of computer networks

1.LAN

- usually multiport  connection
client/server or centralized network structure
Distance : several meters to several Kilometers

Broadcast approach : A second data to E, data is received by B,C,D,E but only E accept it.
Others reject it.

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