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 is error detection code, What is Error detection code? It is a bin...

What is Error detection code? It is a binary code that notice digital errors during transmission. The detected errors cannot be correct but the presence is shown.

Explain active matrix or thin film transistor technology, Q. Explain Active...

Q. Explain Active Matrix or Thin Film Transistor technology? This is known as TFT (Thin Film Transistor) technology. In this there is a transistor at every pixel acting as a r

Explain about aggregations, OLAP can process difficult queries and give the...

OLAP can process difficult queries and give the output in less than 0.1 seconds, for it to achieve like performance OLAP uses aggregations. Aggregations are built by aggregating an

Task gantt, The Task Gantt shows the various tasks being performed i.e., so...

The Task Gantt shows the various tasks being performed i.e., some type of activities by the set of processors attached to the parallel computer as shown in Figure . Task Gantt

How many bits of data will be produced if voice is converted, If voice is c...

If voice is converted to digital form using PCM, how many bits of data will be produced in half a second? While voice is converted to digital by using PCM that is Pulse Code Mo

Define parameters used in program annotation, Q. Define Parameters used in ...

Q. Define Parameters used in Program Annotation? Parameters: A parameter refines and extends the meaning that assembler attributes to keyword in a statement.  Number of param

Other equivalences, Equivalences: In this following miscellaneous equi...

Equivalences: In this following miscellaneous equivalence rules are often useful during rewriting sessions. So there the first two allow us to completely get rid of implicatio

Explain the method to identify the object classes, Explain the method to id...

Explain the method to identify the Object Classes You would always be careful while identifying relevant object classes from application domain. Objects may include physical e

Explain about synchronous dram, Q. Explain about Synchronous DRAM? One ...

Q. Explain about Synchronous DRAM? One of the most broadly used forms of DRAM is synchronous DRAM (SDRAM). Unlike the conventional DRAM that is asynchronous SDRAM exchanges dat

Interaction design, This unit introduces the most important ID terminology,...

This unit introduces the most important ID terminology, explains why ID is important, and gives a description of the main ID activities and the characteristics of the ID process. I

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