Operating System (OS)
Feed back queue

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

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Operating System (OS)
The function(s) of file system is (are):

to provide complete file naming freedom to the users and to permit controlled sharing of files
None of these
to provide for long and short term storage of files with appropriate economic tradeoffs.
All of these
to provide security against loss of information due to system failure

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