Automation System
Robots consist of three basic components; power supply, control (memory) console, and:

software
None of these
mechanical unit (arm)
coaxial cable
microcomputer

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

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

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