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

Explain about end-user computing, End-user Computing: The growing base of p...

End-user Computing: The growing base of personal computers and local area networks in the end user community are supported. This offers installation services, training and helps de

Examples of input, (i) Input a single ASCII character into BL register wit...

(i) Input a single ASCII character into BL register without echo on screen CODE SEGMENT MOV AH, 08H; Function 08H INT 21H ; the character inpu

What is roll area, What is roll area? A roll area having the program's...

What is roll area? A roll area having the program's runtime context. In addition to the runtime stack and other structures, all local variables and any data known to the prog

Explain the modularity of object oriented analysis, Explain the Modularity ...

Explain the Modularity of Object oriented analysis Modularity is closely attached to encapsulation; you may think of it as a way of mapping encapsulated abstractions into phys

#software engineering, Explain software process model in brief.

Explain software process model in brief.

Determine about the virtual private networks, Virtual Private Networks (VPN...

Virtual Private Networks (VPN) In order to encrypt/decrypt all the communication network traffic that passes through the Internet or Intranet, a VPN uses software or hardware.

Assignment, zero, one, two three address instructions

zero, one, two three address instructions

System software, define file system

define file system

What is the future in mq if i have 2+exp, It speeds execution of distribute...

It speeds execution of distributed applications. It runs on dissimilar platforms. It time independent. No loss for msg delivery i.e. guarantee delivery.

De morgan''s laws - artificial intelligence, De Morgan's Laws Continuin...

De Morgan's Laws Continuing with the relationship between ∧ and ∨ , we can also use De Morgan's Law to rearrange sentences involving negation in conjunction with these conne

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages