Automation System
Straight-line operations:

must be parallel to one of the axes of the coordinate system
can include diagonal cuts if they aren't curved
All of these
must be limited to two per workpiece
None of these

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Automation System
The SKETCHPAD system

None of these
All of these
is used for interactive Graphics
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.

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