Automation System
A flip-flop:

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

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Automation System
Sensors:

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

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Automation System
An operating system:

is useless in most control applications
can help reduce software development time
All of these
provides ability for other programmers to understand the software structure
None of these

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