Automation System
A common data base is one requisite for converting CAD and CAM to CIM. Another is that:

technical assistance must be provided to the user.
there should be a common 3-D part description system.
None of these
the user must have access to both hardware and software
the system must make provision for new techniques.

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Automation System
Numerical control:

is a method for producing an exact number of parts per hour
applies only to milling machines
All of these
None of these
is a method for controlling the operation of a machine by means of a set of instructions

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