A computer network is a collection of computers and terminal devices connected together by a communication system. The set of computers may include large-scale computers, medium scale computers, mini computers and microprocessors. The set of terminal devices may include intelligent terminals, "dumb" terminals, workstations of various kinds and miscellaneous devices such as the commonly used telephone instruments.
Many computer people feel that a computer network must include more than one computer system-otherwise, it is an ordinary on-line system. Others feel that the use of telecommunication facilities is of primary importance. Thus, there is no specific definition of a computer network.
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