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

Java programming, Write a program that lets the user play the game Rock, Pa...

Write a program that lets the user play the game Rock, Paper, Scissors against the computer. The program should work as follows: ? When the program begins, the results of the prev

Compare between file processing system and dbms, Problem a. Compare bet...

Problem a. Compare between file processing system and DBMS >>This is a comparison of DBMS with file processing system which the answer has to be searched from the GOOGLE an

Search strategy-artificial intelligence, Search strategy-artificial intelli...

Search strategy-artificial intelligence: Soundness: You  can hear  in  some  application domains  -  i.e.  automated  theorem proving - that a search is "sound and complet

Briefly explain the shutter speed, Question 1 Write a note on transition, ...

Question 1 Write a note on transition, transition types & Features Question 2 Describe the different types of lens used in film shooting Question 3 Briefly explain

Assignment 4, Briefly explain all the networking components and devices tha...

Briefly explain all the networking components and devices that are needed to set up a computer network. This is just a brief explanation of devices needed and their reason for usin

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