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

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

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Automation System
Direct Numerical Control means:

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

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Automation System
Stepping motors:

All of these
can run both clockwise and counterclockwise
can run at varying speeds
can be built to index different amounts by changing the pole configuration
do not require commutators

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