what is a computer network? A computer network is a set of
connected computers. Computers on a network are called nodes. The connection between computers can be done via cabling,
most commonly the Ethernet cable, or wirelessly through radio waves. Connected
computers can share resources, like access to the Internet, printers, file
servers, and others. A network is a multipurpose connection, which allows a
single computer to do more.
Computer network, two or more computers that are connected
with one another for the purpose of communicating data electronically. Besides
physically connecting computer and communication devices, a
network system
serves the important function of establishing a cohesive architecture that
allows a variety of equipment types to transfer information in a near-seamless
fashion.
Computer
communication may occur through wires, optical fibres, or radio transmissions.
Wired networks may use shielded coaxial
cable, similar to the wire connecting
a television to a videocassette recorder or an antenna. They
can also use simpler unshielded wiring with modular connectors similar to
telephone wires. Optical fibres can carry more signals than wires; they are
often used for linking buildings on a college campus or corporate site and
increasingly for longer distances as telephone companies update their networks.
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