A local area network (LAN) is a computer network that interconnects computers within a single physical location. It is the most common type of computer network, used in homes and buildings including offices or schools,[1][2][3] for sharing data and devices between each other, including Internet access. Ethernet and Wi-Fi are the two most common technologies used for local area networks; historical network technologies include ARCNET, Token Ring and AppleTalk.
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A LAN contrasts a wide area network (WAN) which not only covers a larger geographic distance, but also generally involves leased telecommunication circuits.
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