Execute a command in operating system, Basic Computer Science

Assignment Help:

Execute a command in operating system:

In order to execute a command OS does the

following steps:

 

  • It accepts a command from a user through mouse clicks or from the keyboard. Through a port number it is able to recognize what is the source of input. 
  • It must interpret these commands and take actions accordingly.
  • It must provide a file system that can interpret the name of the program being requested and determine the location of  the file on secondary storage device for example. 
  • It must read the appropriate blocks from the device into memory. Only then can the operating system transfer control to the program being executed. 

In case of multiple programs executing simultaneously, CPU does some extra jobs to allot  the CPU time in an equitable way to each program, and also maintain the integrity of each program, etc.

 


Related Discussions:- Execute a command in operating system

Pseudocode, How Much Insurance? Many financial experts advise that property...

How Much Insurance? Many financial experts advise that property owners should insure their homes or buildings for at least 80 percent of the amount it would cost to replace the st

Physics, . State laws of transverse vibrations in stretched strings. Explai...

. State laws of transverse vibrations in stretched strings. Explain how do you verify them using sonometer.

Html, a program to create htmlpage

a program to create htmlpage

Subroutine , Subroutine :   A subroutine  is a type of subprogram, a pi...

Subroutine :   A subroutine  is a type of subprogram, a piece of code within a larger program that performs a specific task and is relatively independent of the remaining code.

What is structure, Problem 1 Write a recursive function to find sum of ...

Problem 1 Write a recursive function to find sum of even numbers from 2 to 50 Writing function and explanation Problem 2 What is structure? Explain how structu

Software, Software Computer cannot be used without a software in...

Software Computer cannot be used without a software in it. It is the software which gives instructions to the hardware of the computer so as to work all devices in tande

Creating Navigational Buttons in Oracle, Need some help in creating custom ...

Need some help in creating custom forms navigational buttons in oracle 10g

Java, what is meant by deliverable in strus base applications

what is meant by deliverable in strus base applications

Goals of autonomous rational agents, Goals of Autonomous Rational Agents: A...

Goals of Autonomous Rational Agents: Artificial intelligence One possible way to improve an agent's performance is to enable it to have some kind of details about what it is tr

Project, My son has a project assignment he has problem with. The only thin...

My son has a project assignment he has problem with. The only thing is, it is due in 20 mins. can someone be able to help him? if so, how much is the fee?

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