Automation System
The program counter:

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

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Automation System
Programmable controllers:

cannot perform functions other than relay logic
are widely used in many different industries
are programmed using relay ladder logic
(a) and (c) above
None of these

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