Define the refresh rates and frame rate, Computer Engineering

Assignment Help:

Q. Define the Refresh Rates and frame rate?

A special circuit known as the Video Controller scans video memory one row at a time and reads data value at each address sending the data out in a serial data stream. This data is displayed by a process known as Scanning where electron beam is swept across the screen one-line-at-a-time and left-to-right. This is controlled by a horizontal and a vertical field produced by electromagnets - one moving the beam vertically and another horizontally.

The rate at which horizontal sweeps happen is known as horizontal frequency or horizontal refresh rate and the rate at which vertical sweeps occur are known as vertical frequency or vertical refresh rate or simply refresh rate or frame rate. The term frame rate is used since actually one vertical sweep means display of a single frame. Because each frame comprises numerous hundred rows, horizontal frequency is hundreds of times higher than vertical frequency. Consequently the unit of horizontal frequency is KHz and that of vertical frequency is Hz.  

The most significant thing is preserving the same frequencies between Video system and monitor. The monitor should support these refresh rates henceforth the supported refresh rates are given with manual of the monitor.  More about this topic will be discussed in section on Monitors.


Related Discussions:- Define the refresh rates and frame rate

Define buffering, Define buffering.  A buffer is a memory area that kee...

Define buffering.  A buffer is a memory area that keeps data while they are transferred among two devices or among a device and an application. Buffering is done for three reas

Computer graphics, what do you mean by inter leasing.how it is display the ...

what do you mean by inter leasing.how it is display the frame having 525 scan lines

What is a kernel shell, A shell is a program that presents an interface to ...

A shell is a program that presents an interface to several operating system functions and services. The shell is so called because it is an outer layer of interface among the user

Rsa encryption function- cryptography, The general method for constructing ...

The general method for constructing the parameters of the RSA cryptosystem can be described as follows: Select two primes p and q Let N = pq and determine ∅ (N) = (p - 1

What is software engineering, Software engineering is:- The application...

Software engineering is:- The application of a disciplined engineering move towards to the development of software systems. A body of information and knowledge in software d

Program for encoding ASCII alpha numeric, Q. Program for encoding ASCII Alp...

Q. Program for encoding ASCII Alpha numeric? ; A program for encoding ASCII Alpha numeric. ; ALGORITHM:             ; create the code table             ; read an input

What is function overloading, a. Describe function declaration, function de...

a. Describe function declaration, function definition and function cell using a suitable example. Explain the function prototype? b. What is function overloading? When do we use

Define restoring method, Define restoring method? The hardware method j...

Define restoring method? The hardware method just explained is called the restoring method. The reason for this name is that the partial reminder is restored by adding the divi

Show programming based on data parallelism, Q. Show Programming Based on Da...

Q. Show Programming Based on Data Parallelism? In data parallel programming model the focal point is on data distribution. Every processor works with a part of data. We will co

Illustrate the state diagrams of dynamic modelling, Dynamic modelling: stat...

Dynamic modelling: state diagrams A state diagrams allow you to further explore operations and attributes which need to be defined for an object. They comprises of sets of sta

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