Review Lecture - The application of microprocessors
John Hugh Westcott · Proceedings of the Royal Society of London A Mathematical and Physical Sciences · 1979
Abstract The swift pace of development of the microprocessor has been remarkable. This development has been powered by extraordinary technical ingenuity in fabrication of metal oxide semiconductors aided by a ready acceptance in the market place, forming an interesting episode in industrial history. New theoretical concepts are now needed to properly accommodate considerations of logic, topology and timing in microelectronics. However, since we are still immersed in the rapid evolution of the microprocessor - perhaps only a glimpse of what is to come has yet been revealed - it is difficult to discern the trend and give a balanced view, but this is attempted. While embodying many virtues, the microprocessor as a system component represents a distinctly unfriendly mixture of software and hardware, whose complexities can easily be underrated in an enthusiasm for its cheapness. On the other hand the range of possible applications is legion; some order will be attempted in characterizing these, and the question of development aids explored, together with problems of interfacing and communication. Designs of five specific applications are described briefly, illustrating what can currently be achieved.