Automation System
Historically, central systems were used because:

semiconductor memory was not available
memory was very expensive
memory consumed a large amount of power
All of these
None of these

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

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

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