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

How does tcp achieve reliability, How does TCP achieve reliability? One...

How does TCP achieve reliability? One of the most significant technologies is retransmission. While TCP stands data the sender compensates for packet loss through implementing

Name some register output control signals, Name some register output contro...

Name some register output control signals. Pc out , MDR out , Z out , Offset out , R1 out , R2 out , R3 out and TEMP out .

Decision trees - artificial intelligence, Decision Trees - Artificial intel...

Decision Trees - Artificial intelligence: Suppose you just ever do four things at the weekend: go shopping, watch a film, play tennis or just stay inside. What you do depends

Why 256 x 8 memory chips is require to design 2k x 8 memory, A number of 25...

A number of 256 x 8 bit memory chips are available. To design a memory organization of 2 K x 8 memory. Identify the requirements of 256 x 8 memory chips and explain the details.

Microprocessor, illustration of Z80 instruction set Computer

illustration of Z80 instruction set Computer

Indias parallel computers, Parallel Computers In India, the design and ...

Parallel Computers In India, the design and development of parallel computers in progress in the early 80?s. The Indian Government recognized the Centre for Development of Adva

How deep does fifo require to be stop underflow or overflow, Given the subs...

Given the subsequent FIFO and rules, how deep does the FIFO require to be to stop underflow or overflow? RULES: a. frequency(clk_A) = frequency(clk_B) / 4 b. per

i open an ms access database, How can I open an MS Access database that ha...

How can I open an MS Access database that has been converted to a current version? Ans) MS Access is not backwards compatible. A workaround to share tables among different versi

What are the advantages of ccs over in-channel signalling, What are the adv...

What are the advantages of CCS over in-channel signalling? The advantages of CCS over in-channel signalling are given below: a. Information can be exchange among the process

Important steps of the boot process, Question: Computer forensic examin...

Question: Computer forensic examiners should be concerned with at least two important settings stored in RTC/NVRAM, which is accessed by the BIOS software most often called Set

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages