Automation System
An aneroid barometer

measures pressure by sensing deflection of an evacuated chambers.
None of these
can measure only atmospheric pressure
can be used to measure gas or liquid flow rates
is very unreliable

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Automation System
The use of specialized workstations:

reduces the host computer workload and allows more users
provides limited growth potentials for 3-D
reduces the host computer workload
None of these
has a high cost-performance tradeoff

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Automation System
A sequence controller:

None of these
is no longer in widespread use
is a mechanical only controller
is difficult to program
performs on/off control functions in relation to time.

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Automation System
The SKETCHPAD system

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

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