Automation System
The integrated circuit:

often is called a "chip"
led to the development of the transistor
has revolutionized electronics
(b) and (c)
None of these

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Automation System
A dc servo motor:

None of these
All of these
uses a tachometer for speed feedback
uses a variable dc voltage for speed control
can provide precise position control

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Automation System
Today, programmable controllers:

are more powerful then the first controllers on the market
can be cost effective even when replacing just a few relays
None of these
All of these
are relatively low cost compared with the original digital equipment available for industrial control

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