Operating System (OS)
Multi programming systems ......

Are used only by large mainframe computer
Execute each job faster
Execute more jobs in the same time period
Are easier to develop than single programming system

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Operating System (OS)
Feed back queue

require manual intervention to implement properly
are used to favor real-time tasks
dispatch tasks according to execution characteristics
None of these
are very easy to implement

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Operating System (OS)
Which of the following is not a characteristic of a daisy chaining priority control scheme?

it is relatively easy to add more devices to the chain
None of these
the number of control lines is independent of the number of devices on the chain
the failure of one device may affect other devices on the chain
priority is programmable

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