Automation System
The SKETCHPAD system

None of these
consisted of an cathode-ray oscilloscope driven by a Lincoln Tx2 computer where by graphical information was displayed on the screen.
is expensive because it is sophisticated and make demands on the power and resources of the computer.
All of these
is used for interactive Graphics

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

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

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Automation System
Microcomputer-based control sys-tems

None of these
will tend to increase in cost.
will have more standard industrial application software available in the future.
All of these
will just keep their present capability

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Automation System
An operating system:

All of these
None of these
is useless in most control applications
can help reduce software development time
provides ability for other programmers to understand the software structure

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