Automation System
The rectangular boundary around a specific area on the display is called

a view plane
a conic section
a view point
None of these
a window

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

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

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