Automation System
The difference between CAD and CAM is that CAD software is directed at product design while CAM software is:

concerned with production and control of tool design
designed for communications
concerned with management programs
specifically for PC-board design
None of these

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Automation System
High-level languages:

are very difficult to use
require knowledge of the computer design
cannot be used with automatic systems.
None of these
are "procedure-oriented"

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