Why Modern OS are interrupt driven?Give an example




Answers were Sorted based on User's Feedback



Why Modern OS are interrupt driven?Give an example..

Answer / imrana

os is interrupt driven software this means that if there is no interrupt then the system will be die

Is This Answer Correct ?    10 Yes 1 No

Why Modern OS are interrupt driven?Give an example..

Answer / shankar

An interrupt driven device sends an interrupt request to the computer, which is then serviced by Internet service routine(ISR).
To effectively manage many processes the core of operating system makes use of what is known as interrupts.
This is a signal to a processor indicating that an asynchronous event has occurred. Here the current sequence of instructions is temporarily suspended, and a sequence appropriate to the interruption is started in its place. Its purpose is to alert the operating system when any special event occurs so that it can suspend its current activity and deal appropriately with the new situation
Usually an interrupt gives a signal from a device attached to a computer or from a program within the computer that causes the main program that operates the computer (the operating system) to stop and figure out what to do next. Almost all personal (or larger) computers today are interrupt-driven - that is, they start down the list of computer instructions in one program (perhaps an application such as a word processor) and keep running the instructions until either (A) they can't go any further or (B) an interrupt signal is sensed. After the interrupt signal is sensed, the computer either resumes running the program it was running or begins running another program

Is This Answer Correct ?    16 Yes 8 No

Why Modern OS are interrupt driven?Give an example..

Answer / banavathvishnu

There are 3 types of OS
1. Interrupt driven
2. Polling
3. Event driven

In Interrupt driven OS CPU clock is handed over to
Interrupt only when the interrupt is occured.

In Polling, CPU clock should wait until an event is occured
is very expencise wrt to CPU clock.

Is This Answer Correct ?    15 Yes 17 No



Post New Answer



More C Interview Questions

The code is::::: if(condition) Printf("Hello"); Else Printf("World"); What will be the condition in if in such a way that both Hello and world are printed in a single attempt?????? Single Attempt in the sense... It must first print "Hello" and it Must go to else part and print "World"..... No loops, Recursion are allowed........................

14 Answers   IBM, HOV Services, Potty,


what is dangling pointer?

1 Answers   LG Soft,


to find out the reverse digit of a given number

6 Answers   TCS, Microsoft, Infosys, Wipro,


hi how to convert program from notepad to turboc editor can u please help me

3 Answers  


1,4,8,13,21,30,36,45,54,63,73,?,?.

10 Answers   Franklin Templeton, AMB,






Struct(s) { int a; long b; } Union (u) {int a; long b; } Print sizeof(s)and sizeof(u) if sizeof(int)=4 and sizeof(long)=4

2 Answers   Mascot,


what is a stack

3 Answers  


what is the c source code for the below output? 1 0 1 1 0 1 0 1 0 1 1 0 1 0 1

0 Answers  


how we can make 3d venturing graphics on outer interface

1 Answers   Microsoft,


Explain Linker and Loader

5 Answers  


4) Write a program that takes a 5 digit number and calculates 2 power that number and prints it.

5 Answers  


is it possible to change the default calling convention in c ?

1 Answers   Aptech,






Categories