Automation System
Having compatibility and commonality in and between vendors' equipment is called:

standardization
None of these
networking
integration
registration

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

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

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