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

Name the processes of oom, Name the processes of OOM In OOM the modelli...

Name the processes of OOM In OOM the modelling passes through the given processes: System Analysis System Design Object Design, and Final Implementation.

Define macros, Define macros.   A macro is a pre-processor directive wh...

Define macros.   A macro is a pre-processor directive which is a program that processes the source code before it passes by the compiler. These are placed in the source program

Explain what is a macro and why is it important, Question 1: Spreadshee...

Question 1: Spreadsheet packages are widely used in Business. a) Explain why spreadsheets are so useful. b) Spreadsheet files are sometimes saved for use by other software p

How are standard query operators useful in linq, Standard Query Operators i...

Standard Query Operators in LINQ can be used for working with collections for any of the following and more. 1. Get total count of elements in a collection. 2. Order the resu

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

What is mqseries channel, Channel means logical communication link. There a...

Channel means logical communication link. There are two parts of channels a) Message channel, b) MQI channel   1) Mesage channel use for communication among QMgr to Q

Common tasks to accomplish - artificial intelligence, Common Tasks to Accom...

Common Tasks to Accomplish: Once you've worried about what and why you're doing "AI", what has inspired you and how you're going to approach the job, then you just start to th

Describe about general-purpose microprocessor, Q. Describe about general-pu...

Q. Describe about general-purpose microprocessor? Keeping rapidity with electronics as more and more components were fabricated on a single chip fewer chips were required to ma

What is virtual memeory, What is virtual memory? How address mapping is don...

What is virtual memory? How address mapping is done in cache memory? Elaborate your answer with examples.

How does the internet work, Every computer connected to Internet has a uniq...

Every computer connected to Internet has a unique address. Let's just say your IP address is 1.2.3.4 and you want to send a message to computer with IP address 5.6.7.8. Message you

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