Explain about spooling, Operating System

Assignment Help:

Q. Explain about Spooling?

  • Acronym for simultaneous peripheral operations on line. Spooling denotes to putting jobs in a buffer, a special area in memory or on a disk where a device can access them whenever it is ready.
  • Spooling is useful since device access data at different rates. Buffer offers a waiting station where data can rest while slower device catches up. Fig below displays the spooling.

8_Explain about Spooling.png

  • Computer can perform I/O in parallel with computation, it becomes possible to have the computer read a deck of cards to adrum, tape or disk and to write out to tape printer while it was computing. This process is known as spooling.
  • The most common spooling application is print spooling. In print spooling documents are loaded in a buffer and then printer pulls them off the buffer at its own rate.
  • Spooling is used for processing data at remote sites also. CPU transmits the data through communications path to a remote printer. Spooling overlaps I/O of one job with computation of other jobs.
  • One difficulty with simple batch systems is that computer still requires to read the decks of cards before it can begin to execute the job. This means that CPU is idle at the time of these relatively slow operations.
  • Spooling batch systems were the first and are simplest of multiprogramming systems

Advantage of Spooling

1.  Spooling operation uses a disk like a very large buffer.

2. Spooling is however capable of overlapping I/O operation for one job with processor operations for another job.


Related Discussions:- Explain about spooling

What is the purpose of system programs, What is the purpose of system progr...

What is the purpose of system programs? System programs can be thought of as bundles of useful system calls. They give basic functionality to users and so users do not require

Os structures, #question.explain varios types of system calls..

#question.explain varios types of system calls..

Operating System, my Operating System is windows trust but when the windows...

my Operating System is windows trust but when the windows start say its windows xp. help pleaes

Independent process, what is independent process? distinguished between ind...

what is independent process? distinguished between independent process and co-operating process

Paging, Paging full question

Paging full question

Define an imperative statement, Determine an imperative statement Imper...

Determine an imperative statement Imperative statement points out an action to be carried out during execution of assembled program

Define the dossleep(ms) function used in the os/2, Define the DosSleep(ms) ...

Define the DosSleep(ms) Function used in the os/2 DosSleep()  suspends the currently executing  thread for some time interval specified in the  ms parameter. If a value of 0 is

Can you give me assistance on my operating system assignment, Can you give ...

Can you give me assistance on my operating system assignment?

Determine the reasons for poor response time, Determine the reasons for Poo...

Determine the reasons for Poor response time Process busy or High I/O rates or High paging rates

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd