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

Feature of micro-instruction execution, Q. Feature of micro-instruction exe...

Q. Feature of micro-instruction execution? Feature of micro-instruction execution is micro-instruction sequencing which involves address calculation of next micro-instruction.

Difference between shadow and override in programming, Overriding tell us o...

Overriding tell us only the methods, but shadowing tells us the entire element.

Cg transformations, magnify a triangle a(0,0), b(1,1), c(5,2) twice its siz...

magnify a triangle a(0,0), b(1,1), c(5,2) twice its size hile keeping c as fix

Process of breadth first search, Process of Breadth first search: It's...

Process of Breadth first search: It's very useful to think of this search as the evolution of the given tree, and how each string of letters of word is found via the search in

What is basic time division switching, What is Basic Time Division Switch...

What is Basic Time Division Switching? Basic Time Division Switching: The functional blocks of a memory based time division switching switch is demonstrated in figure and i

What are the process states in unix, What are the process states in Unix? ...

What are the process states in Unix? As a process implements it changes state according to its circumstances. Unix processes have the following states: Running : The process

What are the 2 ieee standards for floating point numbers, What are the 2 IE...

What are the 2 IEEE standards for floating point numbers? 1.single 2.double

Design a simple digital clock., Use a timer interrupt to design a easy digi...

Use a timer interrupt to design a easy digital clock. This clock will count only minutes and seconds, and start at 00:00 every time your program starts. The show on the screen sh

What is mask operation, What is MASK OPERATION The mask operation is si...

What is MASK OPERATION The mask operation is similar to selective-clear operation except which the bits of Aare cleared only where there are corresponding 0's in register B. th

What are the ways to truncate guard bits, What are the ways to truncate gua...

What are the ways to truncate guard bits? 1. Chopping 2. Von Neumann rounding 3. Rounding procedure.

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages