A local area network (LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, or office building.
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) is a telecommunications network or computer networkthat extends over a large geographical distance.
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