a system for linking private telecommunications equipment, as in a building or cluster of buildings.
2.
Computers. a system for linking personal computers and workstations with each other in order to share data, devices, programs, etc.: usually confined to one office, building, or home.
networking (LAN) A data communications network which is geographically limited (typically to a 1 km radius) allowing easy interconnection of terminals, microprocessors and computers within adjacent buildings. Ethernet and FDDI are examples of standard LANs. Because the network is known to cover only a small area, optimisations can be made in the network signal protocols that permit data rates up to 100Mb/s. See also token ring, wide area network, metropolitan area network.. Usenet newsgroup: news:comp.dcom.lans.misc. (1995-03-13)