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

Foundation of computer system, Foundation of Computer System Q.No-1: W...

Foundation of Computer System Q.No-1: What do you understand by the Efficiency in term of Computers? and How will you measure it? Also define Speed and its factors which ca

Elements of cpu, ELEMENTS OF CPU: The CPU is a complex IC chip having ...

ELEMENTS OF CPU: The CPU is a complex IC chip having millions of transistors. As mentioned earlier, a CPU has three major identifiable parts: Control Unit (CU), Arithmetic & l

Algorithms and flowcharts, 1. Write an algorithm and draw a flowchart to ac...

1. Write an algorithm and draw a flowchart to accept the names and gross salary of 5000 employees and to generate the net pay. If the gross salary is greater than N 50,000 declare

Algorithm, What are the characteristics of algorithm?

What are the characteristics of algorithm?

Boolean expression, Problem 1. Obtain the truth table and a Boolean exp...

Problem 1. Obtain the truth table and a Boolean expression for the following conditions: x is 0 if any two of the three variables are 1. x is 1 for all other conditions.

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.

Long term goal of artificial intelligence, Long term goal of artificial int...

Long term goal of artificial intelligence: This is not to be complex with the applications of AI programs to other sciences, discussed later. Rather, it is just pointing out th

Memory unit of computer, Memory unit of computer: The Memory  unit is ...

Memory unit of computer: The Memory  unit is an important component of a computer where all the data and information are stored in the form  of binary digits (combination of 0

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