Term:LAN [Local Area Network]

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LAN is an acronym for Local Area Network.

There’s no formal definition as to just how local “local” is, but in general, it refers to a network of devices in a single location, where even “location” is a vague term.

A LAN most commonly refers to a network within a home or business that shares a single connection to another network (typically to a WAN), but the term has also been used to refer to the network within a corporation – even though the corporation may have many locations, country- or even planet-wide.

LAN (Wikipedia)
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. 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.

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