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

Explain csmsginterface() function with predefined protocol, Explain CSMsgIn...

Explain CSMsgInterface() Function with Predefined Protocol A REQUEST structure is created for each message sent to the server. Messages passed to CSMsgInterface() as *dataMSG

Name some pure object oriented languages, Some pure object oriented languag...

Some pure object oriented languages are Smalltalk, Eiffel, Java, Sather.

Define parameters used in program annotation, Q. Define Parameters used in ...

Q. Define Parameters used in Program Annotation? Parameters: A parameter refines and extends the meaning that assembler attributes to keyword in a statement. Number of param

De moiver theorem, application of de moiver theorem in software engineering...

application of de moiver theorem in software engineering

Mips assembly language equivalents , MIPS' native assembly code only has tw...

MIPS' native assembly code only has two branch instructions, beq and bne, and only one comparison instruction, slt. Using just these three instructions (along with the ori instruct

What is event-driven control, What is event-driven control? Control res...

What is event-driven control? Control resides within a dispatcher or monitors that language, subsystem or OS provider. Developers attach application process to events and dispa

Java, A string S is said to be "Super ASCII", if it contains the character ...

A string S is said to be "Super ASCII", if it contains the character frequency equal to their ascii values. String will contain only lower case alphabets (''a''-''z'') and the asci

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

What is the purpose of dotnet, What is the purpose of DOTNET? Dot Net I...

What is the purpose of DOTNET? Dot Net Is a collection of products like C#, ASp.Net, Vb.Net, XML. The purpose of .Net is that we can simply upgrade and degrade our programs whi

Differentiate between static and dynamic step loops, Differentiate between ...

Differentiate between static and dynamic step loops. Step loops fall into two classes: Static and Dynamic. Static step loops have a fixed size that cannot be changed at runti

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages