What is spooling? and What is spooled device? Give the examples for the spoole

What is spooling? and What is spooled device? Give the
examples for the spooled devices?

Question Posted / sivavendra

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What is spooling? and What is spooled device? Give the examples for the spooled devices?..

Answer / pooventhan elango

Acronym for simultaneous peripheral operations on-line,
spooling refers to putting jobs in a buffer, a special area
in memory or on a disk where a device can access them when
it is ready. Spooling is useful because devices access data
at different rates. The buffer provides a waiting station
where data can rest while the slower device catches up.
The most common spooling application is print spooling. In
print spooling, documents are loaded into a buffer (usually
an area on a disk), and then the printer pulls them off the
buffer at its own rate. Because the documents are in a
buffer where they can be accessed by the printer, you can
perform other operations on the computer while the printing
takes place in the background. Spooling also lets you place
a number of print jobs on a queue instead of waiting for
each one to finish before specifying the next one.