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The author suggests that, due to the trends of unobtrusive technology and more intrusive information, the next phase of computing technology will develop nonlinearly. He states that, in the long run, the personal computer and the workstation will become practically obsolete because computing access will be everywhere: in the walls, on your wrist, and in 'scrap' computers (i.e., like scrap paper) lying about to be used as needed. The current research on ubiquitous computing is reviewed.>
Mark Weiser (1993) studied this question.