Automation System
Digitizers can be converted from "dumb" to "smart" through the addition of:

a microprocessor
keyboard
an electromagnetic coupling
a scanner
None of these

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Automation System
One of the major benefits of using CAD in tool design is that:

there is better coordination in the materials-handling area
product design represents approximately one-half the engineering costs
it simplifies the trial-and-error method
None of these
tool motions can be checked to see if there is interference between the tool and the object

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