Automation System
The axis of movement of a robot may include:

None of these
elbow rotation
All of these
X-Y coordinate motion
Wrist rotation

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Automation System
The SKETCHPAD system

is used for interactive Graphics
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 expensive because it is sophisticated and make demands on the power and resources of the computer.
All of these

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