Automation System
The "end-effector" of a robot:

None of these
can be an actual tool
is the robot "hand"
All of these
may have a gripping action

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Automation System
A process controller:

can interface to digital and analog I/O
All of these
is useful in a continuous process control application
None of these
can solve a PID process control equation easily

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Automation System
Direct Numerical Control means:

using one computer to control several machines
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

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