Operating System (OS)
A spooler is a

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

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Operating System (OS)
Seeks analysis

is used for analyzing control-unit busy problems
is used for analyzing paging problems
None of these
is only shown on real-time displays
is used for analyzing device busy problems

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