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

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

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Automation System
Direct Numerical Control means:

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

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Automation System
Today, programmable controllers:

None of these
All of these
are more powerful then the first controllers on the market
can be cost effective even when replacing just a few relays
are relatively low cost compared with the original digital equipment available for industrial control

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