Automation System
Stepping motors:

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

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Automation System
Microcomputer-based control sys-tems

All of these
will tend to increase in cost.
will have more standard industrial application software available in the future.
will just keep their present capability
None of these

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