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

Define the circular shifts, Q. Define the Circular shifts ? Circular sh...

Q. Define the Circular shifts ? Circular shifts ROTATE RIGHT andROTATE LEFT. Bits shifted out at one end of word are not lost as in a logical shift however are circulated back

Why have companies gone ecommerce, One of these objectives is related to co...

One of these objectives is related to costs. By going e-commerce, consumers will be able to submit their purchase requests to the sellers without paying a visit to their place. Thi

Explain logical shifts with example, Q. Explain Logical shifts with example...

Q. Explain Logical shifts with example? Logical shifts LOGICAL SHIFT LEFT and LOGICAL SHIFT RIGHT insert zeros to end bit position and other bits of a word are shifted left or

Stencil duplicating, Stencil Duplicating Equipment Required Stenci...

Stencil Duplicating Equipment Required Stencil Duplicator Thermal copier (optional) Electronic stencil cutter Materials Stencil COPY paper Ink Clean

Show the shared programming using library routines, Q. Show the Shared Prog...

Q. Show the Shared Programming Using Library Routines? The mainly well-liked of them is use of combo function known as fork() and join(). Fork() function is used to initialize

What is microprocessor, Microprocessor is a program-controlled device, whic...

Microprocessor is a program-controlled device, which fetches the instructions from memory, decodes and implements the instructions. Most Micro Processor is single- chip devices.

Authentication verses firewall, How does an authentication system be differ...

How does an authentication system be different from a firewall into functioning? Authentication verses firewall User Authentication and Authorization A significan

Do we require an x server to run in batch mode for gimp, Yes, you have to h...

Yes, you have to have some form of X server (unless you're running Windows, of course). It requires an X server for image processing, and for font manipulation. Though, if you wish

Describe about general-purpose registers, Q. Describe about general-purpose...

Q. Describe about general-purpose registers? The general-purpose registers as the name proposes can be used for several functions. For illustration they may comprise operands o

Develop website for my party venue- hall rental website, Project Descriptio...

Project Description: I want to prepare website for my party venue where i can post the photos and detail of place along with availability calendar. In future, I buy some more ha

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