PLAYING THE ORGAN G. Alan Creak , Department of Computer Science, University of Auckland , Private Bag 92019 , Auckland, New Zealand . { alan@cs .aukuni .ac .nz ) The human brain is capable of coordinating a large number of muscular actions to produc e impressive results : we think of an organist, a typist, a driver. A worthy goal fo r rehabilitation computing is to provide a way to achieve the same results for people whos e physical condition make the actions of playing the organ, or typing, or driving, impossible , even though their mental abilities are comparable with those of people generally . In a recent paper', Karshmer, Hartley, and Paap emphasise the importance of providing communications channels of high bandwidth for people who cannot easily use th e visual channels assumed in most human, and specifically human-computer, communication. Their lead prompts me to offer this working paper for discussion and comment . My topic , too, is bandwidth, but I have concentrated on the human output channel . My thesis is that i t should be possible to provide communications channels of adequate bandwidth for man y people with intact cognitive abilities, but that
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