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Wednesday, April 12, 2023

what is LAN (Local Area Network definition) ?

Local Area Network (LAN) – 

  • LAN or Local Area Network connects network devices in such a way that personal computer and workstations can share data, tools and programs. 
  • The group of computers and devices are connected together by a switch, or stack of switches, using a private addressing scheme as defined by the TCP/IP protocol. 
  • Routers are found at the boundary of a LAN, connecting them to the larger WAN. 
  • Data transmits at a very fast rate as the number of computers linked are limited. 
  • LANs cover smaller geographical area (Size is limited to a few kilometers) and are privately owned.
  • One can use it for an office building, home, hospital, schools, etc. 
  • LAN is easy to design and maintain. A Communication medium used for LAN has twisted pair cables and coaxial cables. It covers a short distance, and so the error and noise are minimized.
  • Early LAN’s had data rates in the 4 to 16 Mbps range. Today, speeds are normally 100 or 1000 Mbps.
  • The fault tolerance of a LAN is more and there is less congestion in this network. 

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