Automation System
The SKETCHPAD system

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

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Automation System
Vision sensors:

None of these
can not improve much in the next decade
will remain very costly
will more closely match the capabilities of the human eye
All of these

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Automation System
An aneroid barometer

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

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