The mergind of Computers and communications has had a profound influence on the way Computer Systems are organized. The old model of a single mainframe computer serving all at organizations needs has been replaced by one in which a large number of separate but interconnected computers do the job. These systems called computer networks.
LOCAL AREA NETWORK (LAN) : Local Area Network as the word itself defines, is a network confined to a small area. It is a network of computers that is privately owned and limited to a small room, single building or at most spread across the campus. There are three characterstic of LANs, which distinguish them from other types of networks:
- Size
- Transmission Technology
- Topology
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