Wide area network

A wide area network (WAN) is a telecommunications network that extends over a large geographical area for the primary purpose of computer networking. Wide area networks are often established with leased telecommunication circuits.

A computer network that spans a relatively large geographical area. Typically, a WANconsists of two or more local-area networks(LANs). Computers connected to a wide-area network are often connected through publicnetworks, such as the telephone system. They can also be connected through leased lines or satellites.

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