Local area network

A conceptual diagram of a LAN at a residential house; the router in this case is assumed to also function as a wireless access point. Also shown in this example (shaded in yellow) is the network's connection to the Internet via fixed-line means.

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.

A LAN contrasts a wide area network (WAN) which not only covers a larger geographic distance, but also generally involves leased telecommunication circuits.

  1. ^ Wood, Roy (2024-04-01). "Computer Hardware, Software, and Networks". {{cite journal}}: Cite journal requires |journal= (help)
  2. ^ Gary A. Donahue (June 2007). Network Warrior. O'Reilly. p. 5.
  3. ^ "What is a LAN? Local Area Network". Cisco. Retrieved 2024-12-04.

Local area network

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