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

None of these
Touch terminal
Plotter
Joystick
Programmable function box

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Automation System
Relay ladder logic is used in a PC because:

it is the best industrial control language ever developed.
None of these
most industrial control personnel are familiar with relay ladder logic diagrams and this is the easiest for them to use
it is impossible to write a control program for a machine in any other logic
All of these

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