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  • What is a LAN?
  • A local area network is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building.
  • Where would LANs be used?
  • A LAN is confined to a single room, building or group of buildings; however, one LAN can be connected to other LANs over any distance via telephone lines and radio waves.
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  • Who owns the LAN?
  • Bob Metcalfe inventedEthernet in 1973 while at Xerox PARC, and the company patented it in 1975.
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  • What is a WAN?
  • A widearea network is a telecommunications network or computer network that extendsover a large geographical distance
  • How are WANs connected together?
  • Typically,a WAN consists of twoor more local-area networks (LANs). Computers connected to a wide-area network are often connected through publicnetworks, such as the telephone system. They can also be connected through leased lines orsatellites.
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