The two previous chapters have covered the problems of transferring information as a serial stream of bits, partitioned into groups called characters. The primary motivation for grouping the bits into characters, rather than say computer words, was the early need to communicate between character-oriented devices such as teletypes, displays, printers and the computer. The growth of interactive computing has led to the widespread use of networks of computer terminals connected to a central computer. The purpose of this chapter is to look at the network organisation used for asynchronous terminals.
KeywordsComputer Interface Star Network Local Terminal Guard Band Slow Channel
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