Automation System
One of the following is not considered a method of input control in a CAD system.

Programmable function box
Touch terminal
Plotter
Joystick
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.
All of these
consisted of an cathode-ray oscilloscope driven by a Lincoln Tx2 computer where by graphical information was displayed on the screen.
is used for interactive Graphics
None of these

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