Programmed input - output technique for computers, Computer Engineering

Assignment Help:

Q. Programmed input - output technique for computers?

Programmed input/output is a useful I/O technique for computers where hardware costs need to be minimised. Input or output operation in these cases may involve:

a)  Transfer of data from I/O device to processor registers.

b)  Transfer of data from processor registers to memory.

With programmed I/O method responsibility of processor is to constantly check status of I/O device to check whether it's free or it has completed inputting data. So this method is quite time consuming where processor wastes so much time in checking and verifying status of an I/O device. Figure (a) gives an illustration of use of programmed I/O to read in a block of data from a peripheral device into memory.


Related Discussions:- Programmed input - output technique for computers

Write a bash shell script, Write a BASH/C shell script which takes name of ...

Write a BASH/C shell script which takes name of one or more files as a command line argument, and prints the following information for each file: owner, number of words in the file

Threads, First, remember that different processes keep their own data in di...

First, remember that different processes keep their own data in distinct address spaces. Threads, on the other hand, explicitly share their entire address space with one another. A

Telematics, How are switching system classified

How are switching system classified

What do you mean by digital computer, COMPUTER ORGANIZATION & ARCHITECTURE ...

COMPUTER ORGANIZATION & ARCHITECTURE 1. What do you mean by digital computer? Explain the block diagram of a digital computer. 2. What do you mean by Difference Engine? Expl

Weight training calculations, Weight Training Calculations: However we...

Weight Training Calculations: However we have more weights in our network than in perceptrons but we firstly need to introduce the notation as: w ij just to specify the weigh

Explain the term overlays, Explain the term Overlays. An overlay is an ...

Explain the term Overlays. An overlay is an element of program that has the same load origin as several other part of the program. These are used for reduce the main memory req

Clocked sr flip flop, Clocked SR flip flop A clock pulse is a...

Clocked SR flip flop A clock pulse is a sequence of logic 0, logic 1, and logic 0 occuring on the CLK input. Time t n occurs before the clock pulse and time t n+1

What is artificial intelligence language processing, Artificial intelligenc...

Artificial intelligence language processing (AILP) is a field of computer science and linguistics concerned with the interactions among computers and human (natural) languages; it

Illustrate the application of e-commerce in home banking, Illustrate the ap...

Illustrate the application of E-Commerce in Home Banking. Home Entertainment: E-commerce has show the way to HOME ENTERTAINMENT. The video aspect generally includes a la

Explain e-mail gateways, Explain E-mail gateways. Email using SMTP work...

Explain E-mail gateways. Email using SMTP works better while both the sender and the receiver are on the Internet and can support TCP connections among sender and receiver. Tho

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