Automation System
One advantage of a PC in industrial control is that it:

None of these
is unreliable because there are no moving parts
is very difficult for the inexperienced programmer to understand
All of these
has a reliable long life compared to relay logic

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Automation System
Sensors:

are easily developed
probably will not improve over the next decade
will be much smarter and more sophisticated in the future
None of these
are not important in automation

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Automation System
Microcomputer-based control sys-tems

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

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Automation System
A process controller:

None of these
is useful in a continuous process control application
can solve a PID process control equation easily
can interface to digital and analog I/O
All of these

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