Automation System
Stepping motors:

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

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Automation System
Vision sensors:

will more closely match the capabilities of the human eye
will remain very costly
None of these
All of these
can not improve much in the next decade

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Automation System
Direct Numerical Control means:

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

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