Automation System
The concept of a general CAD system was that it should provide:

A system for handling user actions.
All of these
A system for the operation of applications programming.
A set of basic system functions and utilities.
None of these

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Automation System
A semi-continuous operation means:

a computer is a required part of the machine
coffee breaks are allowed for the operator
None of these
the operation is continuous each shift, but stops between shifts
each operation in a sequence is continuous, but subsequent operations in the sequence may be different.

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