A personal area network (PAN) is the interconnection of information technology devices within the range of an individual person, typically within a range of 10 meters. They typically involve a computer, phone, printer, tablet and/or some other personal device like a PDA.
Local Area Network (LAN)
A local area network (LAN) is a group of computers and associated devices that share a common communications line or wireless link to a server. Most often, 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.
Metropolitan Area Network (MAN)
A metropolitan area network (MAN) is a network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network (LAN) but smaller than the area covered by a wide area network (WAN).
Wide Area Network (WAN)
A wide area network (WAN) is a network that exists over a large-scale geographical area. WANs are used to connect LANs and other types of networks together so that users and computers in one location can communicate with users and computers in other locations. Many WANs are built for one particular organization and are private.
source:
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