Automation System
Robots consist of three basic components; power supply, control (memory) console, and:

software
coaxial cable
None of these
microcomputer
mechanical unit (arm)

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Automation System
Direct Numerical Control means:

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

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Automation System
Light sensors:

cannot be used a s limit switches.
work in direct sunlight
come in a wide variety of mounting styles
None of these
never use infrared light as light source

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