Local area network

"LAN" redirects here. For other uses, see Lan.
Computer network types
by scale
A conceptual diagram of a local area network using bus network topology

A local area network (LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building.[1] By contrast, a wide area network (WAN) not only covers a larger geographic distance, but also generally involves leased telecommunication circuits.

Ethernet and Wi-Fi are the two most common technologies in use for local area networks. Historical network technologies include ARCNET, Token Ring and AppleTalk.

  1. ^ Gary A. Donahue (June 2007). Network Warrior. O'Reilly. p. 5.