Which of the following is an example of spooled device?
2008
Which of the following is an example of spooled device?
- A.
A line printer used to print the output of a number of jobs
- B.
A terminal used to enter input data to a running program
- C.
A secondary storage device in a virtual memory system
- D.
A graphic display device
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Correct answer: A
Spooling stands for Simultaneous Peripheral Operations On-Line, where data is temporarily stored in a buffer before processing by the device. A line printer handling output from multiple jobs simultaneously is the classic textbook example of a spooled device in operating systems. This allows the CPU to continue executing other tasks while the printer processes queued jobs sequentially without blocking.
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