Automation System
Robots consist of three basic components; power supply, control (memory) console, and:

microcomputer
mechanical unit (arm)
software
coaxial cable
None of these

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Automation System
The SKETCHPAD system

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

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