Automation System
A flip-flop:

None of these
remembers what was previously stored in it
is a combinational logic device
is a sequential logic device
(a) and (c)

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Automation System
The SKETCHPAD system

None of these
consisted of an cathode-ray oscilloscope driven by a Lincoln Tx2 computer where by graphical information was displayed on the screen.
is used for interactive Graphics
All of these
is expensive because it is sophisticated and make demands on the power and resources of the computer.

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