Automation System
A flip-flop:

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

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Automation System
The SKETCHPAD system

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

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