Operating System (OS)
A program

is typically characterized by interactive processing and time of the CPU
is a sequence of instructions
is a device that performs a sequence of operations specified by instructions in memory.
None of these
is the device where information is stored

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Operating System (OS)
A spooler is a

Queue of print job that are waiting to print
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
Program that coordinates the print job that are waiting to process

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