Explain in detail about the random scan display, Computer Engineering

Assignment Help:

Explain in detail about the Random Scan Display 

 This device using CRT directs the electron beam only to the parts of the screen where a picture is to be drawn. This kind of device draws only a line on the screen given by its two end points. That is why these devices are referred as vector displays (or calligraphic displays). In case of display device, it is not only an object which has to be drawn but it is also important to refresh it before it disappears in a given period of time depending on the persistence. No frame buffer exists for this kind of systems. When the object consists of too many lines, refreshing time might be longer than the persistence of the phosphor. This may lead to flickering of the picture on screen. In such systems, there may be a display processor that reads a display file. Display file consists of a sequence of graphics commands generated by the application program to refresh the screen.

 


Related Discussions:- Explain in detail about the random scan display

What a header represents in CGI document, A Header in CGI document can repr...

A Header in CGI document can represent? A header into CGI document can show format of the document and the location if document used to various URL.

Address translation - computer architecture, Address translation: ...

Address translation: Compiler time : If it is known in advance that a program will reside at a particular location of primary memory, and then the compiler can be told to

Define the refresh rates and frame rate, Q. Define the Refresh Rates and fr...

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 th

What is application analysis, What is application analysis? The purpose...

What is application analysis? The purpose of analysis is to understand the problem so that a correct design can be constructed. The application analysis focuses on major applic

For which class address 192.5.48.3 belogs, Address 192.5.48.3 belongs to? ...

Address 192.5.48.3 belongs to? Address 192.5.48.3 belongs to class C.

What do you mean by work flow automation, What do you mean by work flow aut...

What do you mean by work flow automation? Work Flow Automation: Organizations frequently standardize processes across the association and encourage users to accept them. E

Pipeline processing-parallel computer architecture , Pipeline Processing ...

Pipeline Processing Pipelining is a process to realize, overlapped parallelism in the proposed answer of a problem, on a digital computer in an economical way. To understand th

Programming, how can compare alphabates of two words in c programming ?????...

how can compare alphabates of two words in c programming ?????

Receive a message, Receive a message. tid is integer task identifier of tra...

Receive a message. tid is integer task identifier of transmitting process supplied by user and msgtag is message tag supplied by user( must be non negative integer). The process re

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