What is input - output commands, Computer Engineering

Assignment Help:

Q. What is Input - Output commands?

There are four kinds of I/O commands which an I/O interface can receive when it's addressed by a processor:

  • Control: This type of commands is device specific and is used to give specific instructions to device for example a magnetic tape requiring rewinding and moving forward by a block.
  • Test: This command checks status like if a device is ready or not or is in error condition.
  • Read: This command is helpful for input of data from input device.
  • Write: this command is employed for output of data to output device.

 


Related Discussions:- What is input - output commands

Determine the term queries-DBMS, Determine the term Queries-DBMS Querie...

Determine the term Queries-DBMS Queries most commonly allow information to be retrieved from tables. As the information is often spread across numerous tables, queries allow it

What are the concerns for growth of e-commerce in india, What are the conce...

What are the concerns for growth of e-commerce in India?  Government as Facilitator for the growth of e-commerce has taken certain steps: Promotion of competitive teleco

State about CSMA/CA, State about CSMA/CA It belongs to a class of proto...

State about CSMA/CA It belongs to a class of protocols known as multiple access methods. CSMA/CA  stands  for:  Carrier  Sense  Multiple  Access  with  Collision Avoidance.  In

Explain data mining, Data Mining is an analytic method designed to explore...

Data Mining is an analytic method designed to explore data and then to validate the findings by applying the detected patterns to latest subsets of data.  The ultimate goal of dat

What is a cooperation model, What is A cooperation model A cooperation ...

What is A cooperation model A cooperation model defines the way interdependencies are established by cooperative interactions. We recognize two basic roles services can play: c

Elaborate state space search briefly, Artificial Intelligence 1. Explai...

Artificial Intelligence 1. Explain about artificial intelligence? What are the achievements of AI? 2. Elaborate state space search briefly. 3. Prove that A* is optimal.

Explain the term- macro, Explain the term- macro? A term macro is a set...

Explain the term- macro? A term macro is a set of instructions, which can be executed repeatedly. It is useful for automating certain routine tasks like printing reports etc. T

Explain syntax of recursion, Syntax of recursion int fib(int num) /*...

Syntax of recursion int fib(int num) /* Fibonacci value of a number */ {      switch(num) { case 0: return(0); break; case 1: return(1); break; default:  /* Incl

Why is TCP called end-to-end protocol, Why is TCP called end-to-end protoco...

Why is TCP called end-to-end protocol? TCP is termed as an end-to-end protocol as this provides a connection directly by an application in one computer to an application on a r

Determine the term- files, Determine the term- Files File maintenance i...

Determine the term- Files File maintenance is significant. Updating of files generally involves inserting, amending and deleting data. Example: A bank would amend data

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