Automation System
Automation normally means:

a net increase in jobs.
None of these
a net loss of jobs.
no change in jobs.
All of these

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Automation System
The program counter:

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

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Automation System
A flip-flop:

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

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