Operating System (OS)
To properly exit windows

Select shut down from Start menu
None of the listed here
Clike the exit button on the desktop
Click the stop button on the desktop

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Operating System (OS)
The dispatcher

never changes task priorities
actually schedules the tasks into the processor
None of these
is always small and simple
puts tasks in I/O wait

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Operating System (OS)
A spooler is a

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
Location in memory that maintains the contents of documents until it prints

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