Operating System (OS)
The higher versions of the operating systems are so written that programs designed for earlier versions can still be run. What is it called?

Upward compatibility
Universality
Upward mobility
Upgradability
None of these

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

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

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Operating System (OS)
A spooler is a

Location in memory that maintains the contents of documents until it prints
Message sent from the printer to the operating system when a print job is completed
Queue of print job that are waiting to print
Program that coordinates the print job that are waiting to process

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Operating System (OS)
Fork is

None of these
the creation of a new job
the creation of a new process
increasing the priority of a task
the dispatching of a task

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