Automation System
The program counter:

counts the number of instructions that have been executed
decides which program to run
contains the address of the next instruction to be executed
None of these
is where arithmetic is done in a computer.

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Automation System
Most industrial control applications:

must have the process specified correctly to be successful
All of these
can be done more reliably using solid-state methods
None of these
can be solved using more than one method of control

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Automation System
A stepping motor;

has a speed proportional to voltage input
None of these
has a commutator
can index positional movement.
is a good choice where continuous rotation is needed

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