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

Copmurer, Classify computer systems according to capacity. How they are dif...

Classify computer systems according to capacity. How they are different from computers according to the classification of technology. Provide comparative study also.

Discuss the roles of system analysts in detail, Question 1 Explain the ...

Question 1 Explain the following system design tools in detail System Flowcharts Decision tables Decision trees Organization charts Question 2 Write s

Types of policy, want to get detail understanding of the types of security ...

want to get detail understanding of the types of security policies including enterprise security policy, issues specific policies etc

Explain briefly about das, Question 1 What is Content Addressable Storage?...

Question 1 What is Content Addressable Storage? Explain the elements of Content Addressable Storage Question 2 Explain briefly about DAS Question 3 Explain about N

Explain the architecture of wap, Question 1 Discuss the benefits and goals...

Question 1 Discuss the benefits and goals of e-commerce Question 2 List and explain the features of portal Question 3 Elaborate the TCP/IP model Question 4 Explain the archi

File sharing architecture, File Sharing Architecture:   The developmen...

File Sharing Architecture:   The development of microprocessor, PC and LAN transformed dumb terminals into -smart? clients. This brought a complete change in the computing env

Properties of Dictionary Keys, Dictionary values encompass no limitations. ...

Dictionary values encompass no limitations. They can be any random Python object, moreover standard objects or user-defined objects. Though, same is not true for the keys. There ar

Nano programing, Nano programming using microcontrol and circuits

Nano programming using microcontrol and circuits

Linux Calculator in Java, Hello, Could you create a linux calculator using ...

Hello, Could you create a linux calculator using very basic java code (not complex, because I am a novice java coder). It should be called into the terminal for interaction. Thank

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