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LAN LAN
Metropolitan Area Network
WAN (Wide Area Network)
It is a digital communication system that interconnects a large number of computers over a wide
geographical area. This network may operate on a worldwide or nationwide basis. In such type
of network, there may not be physical connection between computers. In WAN, telephone lines,
microwave, satellite links, etc., can be used as transmission medium.
LAN LAN LAN LAN
LAN LAN
Wide Area Network
PAN (Personal Area Network)
These are privately owned networks. PAN is used to establish the communication among the computers
within the range of 20 to 30 feet. It can be wired or wireless.
Tech Fact
The concept of a PAN was
first introduced by Thomas
Zimmerman at M.I.T.'s Media
Lab. It was later supported by
IBM's Almaden research lab.
Personal Area Network
Computer Networking 13

