Automation System
Semiconductor devices:

have a very short infant mortality period
All of these
usually have a very short MTBF (mean time between failure)
None of these
are less reliable than electro¬mechanical components

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Automation System
The computer graphics system called SKETCHPAD was demonstrated at

University of Aston, Birmingham, 1960
Cranfield Institute of Technology, London, 1962
None of these
Massachusetts Institute of Technology in 1963
Imperial college of Science and Technology, London, 1973

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