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

Algorithm, solve three given number in ascending order through algorithm

solve three given number in ascending order through algorithm

Data communications and networks, A magazine publisher based in Nairobi has...

A magazine publisher based in Nairobi has branch in Kisumu, and one in Mombasa. The company has kept in touch by telephone and courier service. Each office is networked. The networ

How to avoid race conditions with critical section?, • The key to preventi...

• The key to preventing problem involving shared storage is get some way to prohibit more than one process from reading and writing the shared data concurrently. That part of the p

Explain public code archive, Question 1 Explain the various tools used for...

Question 1 Explain the various tools used for open source software development Question 2 Discuss the OSS licensing strategies Question 3 Explain the software developmen

Historical background of computers, Historical Background The br...

Historical Background The brief history of the growth of computers is given below: Abacus: It was the first mechanical device developed approximately 3,000 year

Keystroke logger and data-stealing, Keystroke logger and Data-stealing: ...

Keystroke logger and Data-stealing: Keystroke loggers: This is a program, once installed on the system, which intercepts the keys when entering the password or the Credit Ca

Flowchart, create a flowchart showing average score for the 3 quizzes assum...

create a flowchart showing average score for the 3 quizzes assume that there are 3 sections each having 5 students the only valid number to be entered is 1-100 for the quizzes shou

Telecommunications network, Telecommunications network: "A telecommuni...

Telecommunications network: "A telecommunications network, at its simplest, may be regarded as comprising a transmission network, an arrangement of transmission paths and swit

SQL 2008 Server Management Studio, 4. Provide a list of productid’s, the n...

4. Provide a list of productid’s, the name of the vendor and their credit rating. The results should be ordered by last name and then by credit rating. Write out the SQL that wo

What is microcontroller?, Microcontroller: A highly integrated microprocess...

Microcontroller: A highly integrated microprocessor designed specifically for use in embedded systems. Microcontrollers typically includes an integrated CPU, memory (a small amount

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages