Automation System
Automation normally means:

All of these
no change in jobs.
a net loss of jobs.
a net increase in jobs.
None of these

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Automation System
A flip-flop:

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

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Automation System
D/A (digital to analog) conversion:

both (b) and (c)
results in a binary code as the final output
None of these
has to be sampled at 1/2 the highest input frequency
must be fed through a filter to reproduce the original signal accurately

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