Automation System
What is offset error?

the difference between the sensor input and the absolute sensed parameter.
the difference between the control setpoint value and the actual value.
All of these
None of these
the difference between the controller output and the setting of the manipulated variable.

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Automation System
The SKETCHPAD system

is used for interactive Graphics
None of these
consisted of an cathode-ray oscilloscope driven by a Lincoln Tx2 computer where by graphical information was displayed on the screen.
is expensive because it is sophisticated and make demands on the power and resources of the computer.
All of these

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Automation System
An operating system:

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

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