Wide Area Network (WAN)
A wide area naetwork is a network system that covers a large geographical area such as different cities of country or different countries lf the world. In WAN telephone lines, satellites, microwave, fiber optic etc. are used as transmission media.
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Local Area Network (LAN)
A local area network is a network system in which computers are interconnected in a limited geographical area, such as etwork of computers in college computer
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Metropolitan Area Network (MAN)
A metropolitan aren network is a network system that covers area of a single city. Usually, MAN connects more than one LANS
