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

Data structure, what are the fundamental data structures

what are the fundamental data structures

What are the features of abap/4 dictionary, What are the features of ABAP/4...

What are the features of ABAP/4 Dictionary? The most significant features are: Integrated to aABAP/4 Development Workbench. Active in the runtime environment.

Explain working of direct memory access, Q. Explain working of Direct Memor...

Q. Explain working of Direct Memory Access? In both programmed I/O and interrupt-driven processor is busy with executing input/output instructions and I/O transfer rate is limi

Find out lowest propagation delay time in logic family, Which the digital l...

Which the digital logic family has the lowest propagation delay time ? Ans. ECL is the digital logic family that has the lowest propagation delay time. In ECL lowest propagati

What are the elements of an instruction, Q. What are the elements of an ins...

Q. What are the elements of an instruction? As the function of instruction is to communicate to CPU what to do it needs a minimum set of communication such as: What op

Where shared resources are accessed, A critical section is a program segmen...

A critical section is a program segment? Ans. A critical section is a program segment where shared resources are accessed.

Arithmetic-logic section in computer system, Arithmetic-logic section in co...

Arithmetic-logic section in computer system: The arithmetic-logic section performs arithmetic operations, such subtraction, addition, multiplication, and division. Throug

File system, advantages of file system?

advantages of file system?

Pulse train, brief explanation on pulse train

brief explanation on pulse train

Write an applet that display the directory holding html file, Write an appl...

Write an applet that display the directory holding the HTML file that started the applet and the directory from which, applet class file was loaded. An applet is here given bel

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages