Automation System
Pressure sensors:

All of these
use capacitive variations to sense pressure
None of these
use an aneroid chamber with a variable resistance output
use the piezoresistive effect in strain gauge sensors

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Automation System
The computer graphics system called SKETCHPAD was demonstrated at

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

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