Automation System
The use of specialized workstations:

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

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Automation System
The refresh-vector CRT uses which of the following techniques?

The beam constantly travels across the screen to turn on/off a series of pixels.
Creates images on the screen by scanning straight-line vectors between selected points.
None of these
Uses an electron gun to continuously flood the surface of the tube.
Makes changes on the image by increasing the anode voltage.

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Automation System
What is proportional control?

All of these
The controller output varies continuously over a range
None of these
It has a discrete output for each error value
The gain is independent of offset error.

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