LAN , MAN , WAN

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LAN

  • Local area networks, generally called LANs, are privately-owned networks within a single building or campus of up to a few kilometers in size.
  • They are widely used to connect personal computers and workstations in company offices and factories to share resources (e.g., printers) and exchange information.
  • Traditional LANs run at speeds of 100 Mbps to 1000 Mbps. Newer LANs operate at up to 10 Gbps.

MAN

  • A MAN usually interconnects a number of local area networks (LANs) using a high-capacity backbone technology, such as fiber-optical links, and provides up-link services to wide area networks (or WAN) and the Internet.
  • A MAN may be wholly owned and operated by a private company, or it may be a service provided by a public company, such as a local telephone company.

WAN

  • A wide area network (WAN) provides long-distance transmission of data, voice, image, and video information over large geographical areas that may comprise a country, a continent, or even the whole world
  • WANs may utilize public, leased, or private communication devices, usually in combinations, and can therefore span an unlimited number of miles.

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