Automation System
The difference between a high-technology and a medium-technology robot is the:

accuracy of the robot
range of motion of the robot
None of these
speed of movement
complexity of the task it can perform.

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Automation System
Relay ladder logic is used in a PC because:

All of these
it is the best industrial control language ever developed.
most industrial control personnel are familiar with relay ladder logic diagrams and this is the easiest for them to use
it is impossible to write a control program for a machine in any other logic
None of these

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