Automation System
Today, programmable controllers:

are more powerful then the first controllers on the market
can be cost effective even when replacing just a few relays
None of these
are relatively low cost compared with the original digital equipment available for industrial control
All of these

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Automation System
The main function(s) of computer in CAD is/are

All of these
To serve as an extension to the memory of the designer
None of these
To relieve the designer from routine repetitious tasks.
To enhance the analytical and logical power of the designer

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