Device controllers, Computer Engineering

Assignment Help:

All components of computer communicate with processor by the system bus. Which means I/O devices required to be attached to system bus. But I/O devices aren't connected directly to computer's system bus. In its place they are attached to an intermediate electronic device interface known as a device controller that in turn is attached to system bus. Therefore a device controller is an interface between a system bus and an I/O device. On one side it knows how to communicate with I/O device associated to it and on the other it knows how to communicate with computer's CPU or processor and memory via the system bus.


Related Discussions:- Device controllers

Define seek time and latency time, Define seek time and latency time. ...

Define seek time and latency time.  The time taken by the head to move to the appropriate cylinder or track is known as seek time. Once the head is at right track, it must wai

What are the requirements of the user, This step of systems examination is ...

This step of systems examination is one of the most difficult. In this stage systems specifications are identified by asking what, who, when, where and how. A few questions address

What is sector sparing, What is sector sparing? Low-level formatting al...

What is sector sparing? Low-level formatting also sets aside spare sectors not visible to the operating system. The controller can be told to change each bad sector logically w

Define the concept of typing of object oriented analysis, Define the concep...

Define the concept of Typing of object oriented analysis Typing enforces object class such that objects of different classes cannot be interchanged.  Or we can say that, class

Platform assignment system, Platform assignment system for the trains in a ...

Platform assignment system for the trains in a railway station cpp program

How can arithmetic processor be associated to the CPU, Q. How can this arit...

Q. How can this arithmetic processor be associated to the CPU?  Two mechanisms are used for connecting arithmetic processor to CPU.   If an arithmetic processor is treated a

Does average velocity differ from its instantaneous velocity, Q. When an ob...

Q. When an object travels with constant velocity does its average velocity during any time interval differ from its instantaneous velocity at any instant? Answer:- No It i

Handshake packets - computer architecture, Handshake packets: Handshak...

Handshake packets: Handshake packets consist of nothing but a PID byte, and are usually sent in response to data packets. The 3 basic types are, NAK, indicating that the data

What is insert module and goal seek functions there in vba, Visual basic ap...

Visual basic applications have very rich and flexible applications but there is single limitation when using pointer function. Windows API has limited support for function pointers

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