Automation System
A microprocessor:

None of these
is another name for a computer
(a) and (c)
executes a program of instructions
is a CPU in integrated circuit form

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Automation System
Time proportioning control:

a and b above.
None of these
can be used on a PM550 programmable process controller
is less efficient than normal PID control
cannot use a TM990 micro¬computer

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Automation System
A flip-flop:

(a) and (c)
is a sequential logic device
is a combinational logic device
None of these
remembers what was previously stored in it

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