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

C, board coloring

board coloring

Depth first search-artificial intelligence, Depth First Search-Artificial i...

Depth First Search-Artificial intelligence: Depth first search is  similar to breadth first, except that things are added to the top of the plan rather than the bottom. In our

Concept of programming language, CONCEPT OF PROGRAMMING LANGUAGE: In o...

CONCEPT OF PROGRAMMING LANGUAGE: In order to communicate with other human beings, one needs some language or a medium. In the same way for solving problems, a programming  lan

Perverse software, is u given is enough for us for this - what is pervere ...

is u given is enough for us for this - what is pervere software and explain in detail?

File management, explain the objectives of file management?

explain the objectives of file management?

Software, what factors might be significant in your decision

what factors might be significant in your decision

Lines and Indentation in python , One of the first caveats programmers come...

One of the first caveats programmers come across when learning Python is the reality that there are no braces to point to blocks of code for class and function definitions or flow

Protocol, what protocol is used by DNS name server

what protocol is used by DNS name server

Programming, write a program to display the first ten terms of the series 2...

write a program to display the first ten terms of the series 2,5,10,17,...........

Bootstrap loader, Bootstrap loader: The critical programs are loaded i...

Bootstrap loader: The critical programs are loaded into memory by the bootstrap loader at start-up time and will remain resident as long as the computer is running. The bootst

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