Automation System
The hardware device Jhat acts as both a switching and connecting unit is called a(n):

communications processor
concentrator
RS-232C port
None of these
multiplexer

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

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

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Automation System
In raster-scan colour monitors, colour can be intensified by:

using an in-line gun arrangement with a solid metal mesh
having each electron gun controlled by a composite signal
grouping the phosphor dots in a circular pattern
None of these
having each electron gun controlled by separate signal

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