Automation System
Historically, central systems were used because:

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

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

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

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