Operating System (OS)
Software that measures, monitors, analyzes, and controls real-world events is called:

None of these
real-time software
business software
system software
scientific software

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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
Program that coordinates the print job that are waiting to process
Location in memory that maintains the contents of documents until it prints
Queue of print job that are waiting to print

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Operating System (OS)
File record length

should be chosen to match the data characteristics
None of these
Should always be variable
depends upon the size of the file
should always be fixed

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