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Local Area Network (LAN)
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A local area network (LAN) is a computer network that connects computers and devices in a limited geographical area such as home, school, computer laboratory or office building. The defining characteristics of LANs, in contrast to wide area networks (WANs), include their usually higher data-transfer rates, smaller geographic area, and lack of a need for leased telecommunication lines.

ARCNET, Token Ring, and other technologystandards have been used in the past, but Ethernet over twisted pair cabling and Wi-Fi are the two most common technologies currently in use.

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