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

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

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Automation System
The program counter:

None of these
decides which program to run
is where arithmetic is done in a computer.
counts the number of instructions that have been executed
contains the address of the next instruction to be executed

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