Event driven devices - polling, Computer Graphics

Assignment Help:

Event Driven Devices - Polling

Polling: The status of all devices is periodically checked in a repetitive manner through a polling loop. While an event happens, the loop is exited and the consequent event is handled by executing some special event-handling routine or task. Again the polling carries on. The disadvantage is, the processor has to stay in an idle state till some event happens. Data entered can be missing if an event happens at a time while the major program is not in its polling loop.

 


Related Discussions:- Event driven devices - polling

Multiple channels, Multiple Channels: As the 1990s, movie theatres have up...

Multiple Channels: As the 1990s, movie theatres have upgraded their sound systems to surround sound systems which carry more than two channels. The most well liked illustrations a

Line clipping algorithm - cohen sutherland algorithm, Line Clipping Algorit...

Line Clipping Algorithm - Cohen Sutherland Algorithm Line is a series of endless number of points; here no two points contain space in among them. Hence, the above said inequa

Jas file formats, JAS: The JAS file formats were implemented to form the s...

JAS: The JAS file formats were implemented to form the smallest possible picture files for 24bits per pixel image and 8 bit per pixel gray scaled pictures. This uses a discrete co

Character generation - output primitives, Character Generation You know...

Character Generation You know that graphics displays often contain components which are text based.  For example graph labels, annotations, descriptions on data flow diagrams,

Graphics hardware - computer aided design, Graphics Hardware - Computer aid...

Graphics Hardware - Computer aided Design Despite with which advance graphic software you are working along with, if your output device is not well or hardware handling which

Animated gif, Animated GIF: For combining various GIF images in a particul...

Animated GIF: For combining various GIF images in a particular file to create animation, GIF file format is used. There are several drawbacks to such functionality. The form

Construction of an isometric projection - transformation, Construction of a...

Construction of an Isometric Projection - Transformation In this projection, the direction of projection i.e. d = (d 1 ,d 2 ,d 3 ) makes an identical angles with all the 3-pr

Education training process, Education training process falls into three gen...

Education training process falls into three general categories: 1) Instructor Support Products: These are used through teachers additionally to text books, lectures and other

Concept of area subdivision method, Q.   Explain the concept of area subdiv...

Q.   Explain the concept of area subdivision method. Write the conditions, when no further subdivision is needed and how we can test these condition. Ans. Area Subdivision Th

Explain the working of animators, Explain the working of Animators Anim...

Explain the working of Animators Animators want to create a human image that moves and interacts with its background in such a way that viewers can't tell if a specific scene 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