What do you mean by software poll, Computer Engineering

Assignment Help:

Q. What do you mean by Software Poll?

In this scheme on occurrence of an interrupt, processor jumps to an interrupt service program or routine whose job is to poll (roll call) every I/O interface to determine which I/O interface has caused interrupt. This may be achieved by reading status register of the I/O interface. Once correct interface is recognized processor branches to a device-service routine specific to device. The shortcoming of software poll is that it's time consuming.


Related Discussions:- What do you mean by software poll

Why does ethernet specify a minimum frame size, Why does Ethernet specify a...

Why does Ethernet specify a minimum frame size. Ethernet frame gives a minimum frame size of 46 bytes. Whereas a data field of zero byte is legal, this causes a problem. While

How can i delete a file, The Standard C Library function is removing. (This...

The Standard C Library function is removing. (This is thus one of the few questions in this section for which the answer is not ''It's system-dependent.'') On older, pre-ANSI Unix

Decision trees, Decision Trees: Visualize you only ever do four things...

Decision Trees: Visualize you only ever do four things at the weekend such as go shopping or watch a movie or play tennis and just stay in. In such case what you do depends on

Ready to help students, What is the process to register as expert in comput...

What is the process to register as expert in computer science

Define memory management system, Define memory management system? The p...

Define memory management system? The part of the computer system that supervises the flow of information among auxiliary memory and main memory is known as memory management sy

Sort Wars, If quicksort is so quick, why bother with anything else? If bubb...

If quicksort is so quick, why bother with anything else? If bubble sort is so bad, why even mention it? For that matter, why are there so many sorting algorithms?

Human intelligence in culture - artificial intelligence, Human intelligence...

Human intelligence in culture: Understand human intelligence in culture  "AI" can be seen as just the latest tool in the philosopher's toolbox for answering questions about

C programming, You are given a collection of words, say as in a dictionary....

You are given a collection of words, say as in a dictionary. You can represent it in the following compressed form: the first word will be followed by a sequence of a pair of numbe

Difference among msgbox statement and msgboxq function, MsgBox is a built i...

MsgBox is a built in VB function which shows a Message Box and MsgBoxQ is a function definite by the user.

What is software and hardware interrupt, What is Software and hardware inte...

What is Software and hardware interrupt The software interrupts are program instructions. These instructions are inserted at desired location in a program. A program formed int

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