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

Data processing, Data Processing In any computer-based system, d...

Data Processing In any computer-based system, data storage and retrieval plays an important role. Data storage involves decision about the encoding of data, assignment o

Output devices, Output devices: One of the most important output devic...

Output devices: One of the most important output devices in computer system is its screen commonly called monitor. It is an output device and displays all the programs and app

What is deadlock ?Differentiate two types of resources ?, • A set of proce...

• A set of process is in a deadlock state if each process in the group is waiting for an event that can be caused by only another process in the set. In other words, each member of

Algorithms, write algotithm and flow chart for largest of 3 numbers

write algotithm and flow chart for largest of 3 numbers

Define interlibrary lending, QUESTION (i) Define each of the following ...

QUESTION (i) Define each of the following terms: a) Interlibrary lending b) Manuscript c) Papyrus d) Community profile e) Mauritiana (ii) Explain with example

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

Explain the basic structure of a c program, Question 1 Explain the basic...

Question 1 Explain the basic structure of a C program with an example 2 What would be the value of x after execution of the following statements? 3.What are the commonly u

Uninformed search strategies, Uninformed Search Strategies: To be able ...

Uninformed Search Strategies: To be able to undertake a regular search, our entire agent ought to know is the starting state, the possible operators and how to check whether th

Science, Ask question #Minimum 100 words accepted/

Ask question #Minimum 100 words accepted/

Logic instructions , They are used to act upon logic operations on the oper...

They are used to act upon logic operations on the operators. AND OR, NEG NOT TEST XOR AND INSTRUCTION Function: It acts upon the conjunction of the operators bit by bit. Syntax: A

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages