Automation System
How is the integral mode implemented on a digital controller?

the error is divided into discrete amounts
None of these
the error signal is summed over a discrete time interval and accumulated by the controller
All of these
the digital controller cannot handle integral mode

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Automation System
The computer graphics system called SKETCHPAD was demonstrated at

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

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