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LAN (Local Area Network)
LAN is a short form of Local Area Network. It is a digital communication
system that interconnects a large number of computers and other
peripheral devices within a radius of less than 1 km. This type of
network is usually preferred for a smaller area such as a residence,
school, laboratory, university campus, or office building. By using the
LAN network, users can exchange data and messages in an easy and
fast way. Cables, Wireless Access Points (WAPs), and communication
devices are used to connect computers to the LAN.
MAN (Metropolitan Area Network)
MAN consists of two or more local area networks or campus area networks together that usually spans
several buildings in the same city or town.
LAN LAN
WAN (Wide Area Network)
WAN is a digital communication system interconnects a large number of computers over a wide
geographical area. This network may operate on a worldwide or nationwide basis. In such a type
of network, there may not be a physical connection between computers. In WAN, telephone lines,
microwave, satellite links, etc. can be used as transmission medium.
LAN LAN LAN LAN
LAN LAN
Imagine computer networks as highways in the sky. What vehicles would travel on these
highways, and what destinations would they reach?
Computer Networking 15

