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

What is the purpose of putchar function, What is the purpose of putchar fun...

What is the purpose of putchar function Putchar writes one character to the standard output file, stdout. Syntax #include int putchar(int c); The putchar macro wr

The concept of thread-parallel computing, The Concept of Thread Thread ...

The Concept of Thread Thread is a chronological flow of control within a process. A process can include one or more threads. Threads have their own register values and program

Explain the optimization of data access paths, Explain the Optimization of ...

Explain the Optimization of data access paths Optimization is a very significant aspect of any design. The designer must do the followings for optimization: i) Add redundan

Explain the importance of search engines, Explain the importance of Search ...

Explain the importance of Search Engines The most effective way of finding information on the internet is to use a search engine. Though, it's just as easy to use these ineffic

Construct the finite automata, Give the regular expression of the set of al...

Give the regular expression of the set of all even strings over the alphabet {a, b} along with at least one of the two substrings aa or bb. As well construct the finite automata wh

What is ai backgammon, This part looks at Berliner's program, two backprop ...

This part looks at Berliner's program, two backprop versions by Tesauro and a temporal difference process by Tesauro. This latter program is VERY good quality and has found strateg

Formal analysis of visual elements, Formal Analysis: The second step o...

Formal Analysis: The second step of the art critiquing process often begins with an analysis of the artworks formal elements and how they are the organised. The formal elem

What is tcas, tCAS is the number of clock cycles required to access a parti...

tCAS is the number of clock cycles required to access a particular column of data in SDRAM. CAS latency is the column address strobe time, sometimes referred to as tCL.

Differences between one hot and binary encoding, What are differences betwe...

What are differences between one hot and binary encoding? Common classifications used to explain the state encoding of an FSM is Binary or highly encoded and one hot. A bina

-bit comparator using combinational logic, Design a 4-bit comparator using ...

Design a 4-bit comparator using combinational logic, and Karnaugh Maps. The inputs of the circuit are two 2-bit numbers. a) Construct the truth table given 2-bits inputs A and B, a

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages