A network is a collection of computers and devices
connected together via communications devices, such as a modem, and
communications media, such as cables, telephone lines, cellular radio, and
satellites. Networks allow users to share resources, such as hardware devices,
software devices, data, and information. Most business computers are networked,
either by a local area network (LAN) in a limited geographic area or by a wide
area network (WAN) in a large geographical area.
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