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

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

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Automation System
The SKETCHPAD system

None of these
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.
is used for interactive Graphics
All of these

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Automation System
Microcomputer-based control sys-tems

None of these
will have more standard industrial application software available in the future.
will tend to increase in cost.
All of these
will just keep their present capability

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Automation System
If the transient response is under damped:

the value of the output will exceed the value of the input at times during the transient period
the present overshoot is zero
steady-state will be reached faster than if the system is overdamped
both a and b
None of these

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