The purpose of this chapter is to outline as simply as possible, and from a logical rather than a detailed circuit point of view, some of the hardware aspects of computer graphic terminals. This will include some of the more commonly used techniques for the generation and display of alphanumeric information on Cathode Ray Tube (C.R.T.) displays, the principles of operation of some input devices and an appraisal of some display mechanisms in relation to their suitability for use as acceptable computer graphic terminals.
KeywordsLocal Memory Refresh Rate Storage Surface Main Processor Lissajous Figure
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