Which of the following is an example of a spooled device?
1998
Which of the following is an example of a spooled device?
Answer: B. An output device used to print the output of a number of jobs. — SPOOLING stands for Simultaneous Peripheral Operations On-Line. It is a technique used to handle slow I/O devices (like printers) by using a fast intermediate…
- A.
The terminal used to enter the input data for the C program being executed.
- B.
An output device used to print the output of a number of jobs.
- C.
The secondary memory device in a virtual storage system.
- D.
The swapping area on a disk used by the sapper.
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Correct answer: B
SPOOLING stands for Simultaneous Peripheral Operations On-Line. It is a technique used to handle slow I/O devices (like printers) by using a fast intermediate buffer (typically a disk).
Instead of a fast CPU waiting around for a slow printer to finish printing Job A before it can process Job B, the CPU quickly dumps the output data for all the jobs into a disk spool/queue. A spooler program then intercepts this data and feeds it to the printer at its own slow pace, allowing the CPU to move on to other tasks without getting blocked.
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