Automation System
Direct Numerical Control means:

eliminating computers from the manufacturing process
None of these
complete elimination of a need for a human operator.
using several computers to control one large machine
using one computer to control several machines

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Automation System
The program counter:

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

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