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

Illustrate about object oriented development, Illustrate about object orien...

Illustrate about object oriented development object oriented development is not direct way of system development as in this approach a holistic view of application domain is co

Example of frames format with ethernet, Compute the number of Ethernet fram...

Compute the number of Ethernet frames formed for a data of 64 KB IP packet. Following figure demonstrates the format of the Ethernet frame. Here maximum data into a frame is 15

Define password methods and biometric systems, Define the password methods ...

Define the password methods and Biometric systems for implementing client server network security. In cyberspace, buyers and sellers cannot notice each other. Also within video

Mathematical theorems, Proving ( or disproving) mathematical theorems are ...

Proving ( or disproving) mathematical theorems are an intensive intellectual task. This is because it requires deductions from hypotheses and also involves judgment. This judgm

Dynamic programming, Given: • A sequence of n arrival times t0, t1, ..., ...

Given: • A sequence of n arrival times t0, t1, ..., tn-1, • a library of mlogically equivalent gates {(d0, c0), (d1, c1), ..., (dm-1,cm-1)} where d is delay and c is cost • a

Explain parallelism based on grain size in detail, Parallelism based on Gra...

Parallelism based on Grain size Grain size : Grain size/ Granularity are a measure that defines how much computation is involved in a process. Grain size is concluded by count

What are the functions of dispatcher, What are the functions of dispatcher?...

What are the functions of dispatcher? There are four fuctions of dispatcher:- A)  Equal distribution of transaction load to the work processes.  B) Management of buffer a

Explain with the help of examples fifo algorithms, Explain with the help of...

Explain with the help of examples FIFO algorithms? FIFO policy: This policy easy removes pages in the order they arrived into the main memory. By using this policy we easily

Determine capacity in bytes of a certain memory, A certain memory has a cap...

A certain memory has a capacity of 4K × 8 (i)  How many data input and data output lines does it have? (ii) How many address lines does it have? (iii) What is its capacity in bytes

Sap system configuration, SAP system configuration includes It include...

SAP system configuration includes It includes :- a) Dialog tasks b) Update tasks.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd