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

Operating system, Ask question describes deadlock avoidance#Minimum 100 wor...

Ask question describes deadlock avoidance#Minimum 100 words accepted#

C programming program, I wrote a program that adds up 5x5 matrices by colum...

I wrote a program that adds up 5x5 matrices by column and row. Now i have to use pointers to rewrite the same code how would do that

Identify the critical races, 1. The standard way for debuggers to plant bre...

1. The standard way for debuggers to plant breakpoints in a program in RAM (whatever the processor instruction set) is to save the breakpointed instruction and replace it by a jump

Languages, Languages The language is a program containing rules and...

Languages The language is a program containing rules and guidelines to help us in making programs. There are various languages like C, Basic, COBOL, PASCAL, FORTRAN etc. Th

Artificial interlligence, 7. Name and explain the action in Conceptual Depe...

7. Name and explain the action in Conceptual Dependency which refers to a transfer of possession.

Assembly language, Assembly language : Assembly language is a low level...

Assembly language : Assembly language is a low level programming language similar to machine language, but far easier to write and understand because machine language binary in

Definition of procedure, A procedure is a compilation of instructions to wh...

A procedure is a compilation of instructions to which we can express the flow of our program, and once the execution of these instructions is over power is given back to the next l

Explain Debug program in assembly language , To make a program in assemble...

To make a program in assembler two choices exist, the earliest one is to use the TASM or Turbo Assembler, of Borland, and the next one is to use the debugger, generally we use this

Define CISC and RISC ?, Two competing architectures were developed for impr...

Two competing architectures were developed for improving the architecture of the central processing unit, and different processors are conventional to each one. Both had their powe

Innovation, role of an system analyst as an innovator

role of an system analyst as an innovator

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