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

Explain client server model, Explain Client Server Model. In the client...

Explain Client Server Model. In the client- server model, communication usually takes the form of a request message from the client to the server asking for several works to be

Swing, how to make a dfd of simple calculator?

how to make a dfd of simple calculator?

Features of mpi-1, Features of MPI-1 Binding for FORTRAN and C ...

Features of MPI-1 Binding for FORTRAN and C Collective communication Communication domains and Process groups Point-to-point communication Virtual process

Logical user-centered interactive design methodology, Question: Logical...

Question: Logical User-Centered Interactive Design Methodology is a methodology that identifies six clear stages to help in software development while keeping the user in mind.

What is macro, A series of keystrokes and mouse clicks that can be abbrevia...

A series of keystrokes and mouse clicks that can be abbreviated into a one keystroke or mouse click.

How is transaction processing system affected, How is Transaction Processin...

How is Transaction Processing System affect performance of e-commerce sites? Transaction Processing System influences performance of e-commerce sites: Transaction-Processing

Communications and synchronization, Communications Parallel tasks class...

Communications Parallel tasks classically need to exchange data. There are many ways in which this can be accomplished, such as, through a network or shared memory bus. The act

Design a nand-to-and gate network, Q Use as few gates as possible, design a...

Q Use as few gates as possible, design a NAND-to-AND gate network that realize the following Boolean algebra expression. ABCD + A'BC'D + A'BC'D' + A'BCD + (A'B'C'D' + A'BCD')

What are threads, What are threads? A thread, sometimes termed as a lig...

What are threads? A thread, sometimes termed as a lightweight process (LWP), is a fundamental unit of CPU utilization; this comprises a thread ID a register set and a stack and

What is assembly condition codes, Condition codes are the list of possible ...

Condition codes are the list of possible conditions that can be tested through conditional instructions. Typical conditional instructions have: conditional branches, conditional ju

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