Automation System
Skipping every other line and picking up the skipped lines on the second pass is called:

refresh-vector
raster-scan
interlacing
stroke writing
None of these

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Automation System
The SKETCHPAD system

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

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Automation System
How is the integral mode implemented on a digital controller?

the error signal is summed over a discrete time interval and accumulated by the controller
None of these
All of these
the error is divided into discrete amounts
the digital controller cannot handle integral mode

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