Automation System
The SKETCHPAD system

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
consisted of an cathode-ray oscilloscope driven by a Lincoln Tx2 computer where by graphical information was displayed on the screen.
None of these

ANSWER DOWNLOAD EXAMIANS APP

Automation System
A sequence controller:

is difficult to program
performs on/off control functions in relation to time.
None of these
is no longer in widespread use
is a mechanical only controller

ANSWER DOWNLOAD EXAMIANS APP