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

Pipelining, tellme the types of pipelining

tellme the types of pipelining

What are the most common forms of mixing, Question 1 What is the differenc...

Question 1 What is the difference between Variable Bit Rate and Constant Bit Rate? Question 2 Write a note on: Normalization, Reverberation, Noise Reduction, Filters, and

Use photoshop to create the images, Use the skills that you have learned in...

Use the skills that you have learned in Photoshop to create the following images that could be used in your upcoming web project. All images should be cohesive and complement each

Disk output, Disk output : You will already have decided whether to u...

Disk output : You will already have decided whether to use a hard disk or floppies for storing data. An important point of disk management is to ensure a secure method of kee

Define Program formation process, For the formation of a program it is nece...

For the formation of a program it is necessary to follow five steps: Design of the algorithm, stage the problem to be solved is reputable and the best solution is proposed, creatin

Cad cam, Define explicit, implicit and parametric representation and what a...

Define explicit, implicit and parametric representation and what are their advantages?

Drawing Karnaugh Maps, Where can I get free software for drawing K maps

Where can I get free software for drawing K maps

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