Automation System
Today, programmable controllers:

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

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Automation System
A discrete parts process is:

(b) and (c)
None of these
the same as a continuous process except a different controller must be used
often encountered in manufacturing
normally a repetitive series of operations

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