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

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

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

it is impossible to write a control program for a machine in any other logic
All of these
None 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

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