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

Machine Learning, Hi I have a 8 question machine learning problem sheet due...

Hi I have a 8 question machine learning problem sheet due to the 25th of december. The exercises require knowledge of basic classifiers, logistic regression, naive bayes, mixture o

Process control management, Process Control Management:   A  process  ...

Process Control Management:   A  process  is an executing program. It is considered the standard unit of work within a computer system. Every executing program is treated as a

Word processing (wp), Word Processing (WP): Word Processing is one of ...

Word Processing (WP): Word Processing is one of the most widespread application software types in use today. Developed as a successor to primitive text editors that were popul

Network control, Network Control, Engineering and Management Network co...

Network Control, Engineering and Management Network control in this sense involves traffic management, and the engineering of the networks to support varying traffic loads. In

Digital design system, Manipulate the following Boolean expression in such ...

Manipulate the following Boolean expression in such a way so that it can be implemented using exclusive-OR and AND gates only. AB''CD'' + A ''BCD'' + AB''C''D + A''BC''D

Explain the tcp/ip reference model with diagram, Question 1 Define the fol...

Question 1 Define the following terms                                   1) Analog Signals and Digital Signals 2) Composite signals Question 2 Define the following terms

The microprocessor, THE MICROPROCESSOR The three fundamental units, whi...

THE MICROPROCESSOR The three fundamental units, which comprise a CPU, have now been discussed in general terms.  So too has a microprocessor, because a microprocessor can be de

Memory, what is cache memory

what is cache memory

Explain CPU scheduling and its objectives?, Definition of CPU scheduling: T...

Definition of CPU scheduling: The assignment of physical processors to processes allows processors to complete work. The process of determining that for which process which pro

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