Automation System
The "walk-through" method of programming a robot involves:

None of these
moving the robot from one location to another
physically moving the robot through all the motions it is to repeat
All of these
walking through your suggested procedure with your supervisor prior to programming

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Automation System
Today, programmable controllers:

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

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