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

Convert statement into conjunctive normal form , Consider the following sta...

Consider the following statements about the types of fruit people like. If people like apples, then they do not like oranges. If people do not like apples, then they like orang

Command mode to insertion mode using vi editor, How to enter from command m...

How to enter from command mode to insertion mode using Vi Editor? Ans) There are various commands that put the VI editor into insert mode. The most usually used commands to get

Develop a program which reads hexadecimal number, Q. Develop a program, wh...

Q. Develop a program, which reads Hexadecimal number from an input file & convert it into Octal, Binary, and Decimal. The O/P should be written to a file & displayed accordingly.

When is a memory unit called as ram, When is a memory unit called as RAM? ...

When is a memory unit called as RAM? A memory unit is called as RAM if any location can be accessed for a read or writes operation in some fixed quantity of time that is indepe

Illustrate the advantages of register transfer, Register Transfer We as...

Register Transfer We assign computer registers by capital letters to denote function of the register. Such as, the register which holds an address for memory unit is usually

Explain the differences of casex and casez, Explain the differences of case...

Explain the differences of casex and casez over the case statement? casex operator has to be used when both high impedance value (z) and unknown (x) in any bit has to be t

What is fan-out, What is fan-out? Estimate the average count of every "...

What is fan-out? Estimate the average count of every "many" association encountered with the path. Multiply the individual fan-outs who obtain the fan-out of the whole path, wh

Computer network, how Hierarchical Routing implement in c or cpp

how Hierarchical Routing implement in c or cpp

Control-centered virtual manufacturing, Control-Centered Virtual Manufactur...

Control-Centered Virtual Manufacturing This is the addition of simulations to control actual processes and models, permitting for seamless simulation for optimization throughou

Why are interrupt masks provided in any processor, Why are interrupt masks ...

Why are interrupt masks provided in any processor? Interrupt mask enable the higher priority devices comes first and there for lower priority devices comes last. The interrupt

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages