The C programming language
Communications of the ACM
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This paper describes a continuing series of experiments aimed at providing improved communications for non-vocal, motion-impaired people. Special keyboards, coupled with a computer which permits one or two keystrokes to call out a complete phrase, have been enthusiastically used by children at the United Cerebral Palsy Association in Edison, New Jersey. After a brief review of previous systems, the current one, which uses a stand-alone microcomputer, is described.