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

Explain what is rmi, QUESTION (a) Explain what is RMI? (b) Draw a di...

QUESTION (a) Explain what is RMI? (b) Draw a diagram showing the different parts of the Java RMI architecture. (c) What is the function of the RMI security manager and RM

Discuss the attributes of speech codec, Question 1 What is mobile telephon...

Question 1 What is mobile telephone initialization? Explain the three main goals of this procedure Define GSM system operations Introduction to mobile telephone initializ

Web Design Project, Hello - What is the turn around time for a 6 page websi...

Hello - What is the turn around time for a 6 page website.

Necessary nurses records, Necessary Nurses Records The software shoul...

Necessary Nurses Records The software should generate all registers/reports in detail summary for various permutations and combinations of options. A powerful SQL (Structure

Traditional business cycle, what is traditional business cycle

what is traditional business cycle

Overview of a computer system, Overview of a Computer System The...

Overview of a Computer System There are three major elements in every computer solution. They are: Data Hardware Software Hardware + Softwa

Hilt,

OPERATING SYSTEM, WHAT IS MULTIPLE CONTIGUOUS VARIABLE PARTITIONING

WHAT IS MULTIPLE CONTIGUOUS VARIABLE PARTITIONING

Output devices, Output Devices: Each output unit of computer system tr...

Output Devices: Each output unit of computer system transmits information from the CPU and converts the electrical pulses to an appropriate output form. A printer, for example

What is a signaling protocol, QUESTION (a) How VoIP Works and how VoIP ...

QUESTION (a) How VoIP Works and how VoIP helps today's business? (b) What is a signaling protocol? Explain about SIP components and their key benefits (c) What is IPTV? L

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages