Differentiate between synchronous and asynchronous i/o, Computer Engineering

Assignment Help:

Differentiate between synchronous and asynchronous input/output with the help of an example.

The input-output operation is asynchronous input/output operation since after the start of input/output, control is returned to the user program without waiting for the input/output to finish. The input/output continues and upon its completion, an interrupt is generated through the controller to attain CPU's attention.

CPU execution waits, whereas I/O proceeds, in that case, there is a possibility as at most one request I/O request is outstanding at a time. It is termed as synchronous I/O.


Related Discussions:- Differentiate between synchronous and asynchronous i/o

Software estimation, Software Estimation The statement of scope helps t...

Software Estimation The statement of scope helps the planner to established estimates using one or more method which fail into two wide categories: empirical modeling and decom

Explain direct broadcast & limited broadcast, Explain Direct broadcast & li...

Explain Direct broadcast & limited broadcast. Broadcast is a method to send a packet to all the stat ions on an exact network at once. Broadcast systems permit the possibility

Which of the memory is volatile memory, Which of the memory is volatile mem...

Which of the memory is volatile memory ? Ans. A volatile memory is RAM. Term Volatile memory implies the contents of the RAM get erased as soon as the power goes off.

How does computer know that overflow has happened, Q. How does computer kno...

Q. How does computer know that overflow has happened? Illustration: Add numbers 65 and 75 in 8 bit register in signed 2's complement notation.  Here expected result is

Determine what is the frame rate and frame duration, (i)  A multiplexer com...

(i)  A multiplexer combines four 100-Kbps channels using a time slot of 4 bits. Each Frame has the size of 16 bits. a)  Show the output with the four inputs as shown in the figu

Find minimal expression for sop. draw gate network, Q Consider the followin...

Q Consider the following expression. Assume that complement inputs are available. F(A,B,C,D) = ∑m (1,2,6,9,10,14) + ∑d (4,7,8,11,12) a. Find minimal expression for SOP. Draw

How many bits must be decoded for 128 × 8 ram chips, How many bits must be ...

How many bits must be decoded for chip select? What is the size of decoder when 128 × 8 RAM chips are required to provide a memory capacity of 2048 bytes? Ans. All higher order l

Parallel edge or self loop of the total number of edges, A graph with n ver...

A graph with n vertices will definitely have a parallel edge or self loop of the total number of edges are More than n(n-1)/2

Functionality of hypethread processor, Hyper-threading works by duplicating...

Hyper-threading works by duplicating those parts of processor which store architectural state but not duplicating main execution resources. This permits a Hyper-threading equipped

Subprogram or procedure level, SubProgram or Procedure Level This level...

SubProgram or Procedure Level This level consists of subroutines, procedures or subprograms. Average grain size is used at this level containing various thousands of instructio

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