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 checkbox in html, Q. Define Checkbox in html? Checkboxes are use...

Q. Define Checkbox in html? Checkboxes are used when one or more out of the group of options is to be chosen. Building Check boxes is very similar to radio buttons. Figure expl

Write c program to read the text book number, With a C program to read the ...

With a C program to read the text book number, title, author and publisher into a structure and print these values. # include # include void main() { struct boo

Which one memory requires refreshing, Which of following requires refreshin...

Which of following requires refreshing SRAM., DRAM., ROM. or EPROM. ? Ans. DRAM. requires refreshing.

Explain analysis and synthesis phase of a compiler, Explain analysis and sy...

Explain analysis and synthesis phase of a compiler. The synthesis and analysis phases of a compiler are: Analysis Phase: In this breaks the source program in constituent

Fundamental building block of main memory, Q. Fundamental building block of...

Q. Fundamental building block of main memory? The fundamental building block of main memory remains DRAM chip as it has for decades. Till recently there had been no important c

What is the principle of locality, What is "the principle of locality"? ...

What is "the principle of locality"? It's the nature of the processes that they refer only to the small subset of the total data space of the process. I.e. the process frequ

What are the principles of transport layer, Q. What are the principles of t...

Q. What are the principles of transport layer? Transport layer: This layer is the first end-to-end layer. Header of transport layer includes information which helps send the

#title.un ba lance out put differential amplitude, #questi on.. How it wor...

#questi on.. How it works explain

Realize x-nor gate using nand gate, Q. A. Which gates are called Universa...

Q. A. Which gates are called Universal Gates? Why? B. State and prove any one of the DeMorgen's Laws. Show that these theorems can be extended up to any number of variables.

State some criterias and their effects on a database, It is possible to ent...

It is possible to enter one or more criteria in the rows which can influence your database significantly. >="Callahan" this returns all the several records from Callahan to the

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages