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

Persistence of phosphor - display devices, Persistence (of phosphor) - Disp...

Persistence (of phosphor) - Display devices Time it takes the emitted light from screen to decay to one-tenth of its original intensity. The point where an electron gun strikes

What is aspect ratio, Define  Aspect ratio- Aspect ratio: The ratio ...

Define  Aspect ratio- Aspect ratio: The ratio of vertical points to horizontal points necessary to produce equal –length lines in both directions on the screen, is called as

Output primitives and geometric transformations, Output Primitives and Geom...

Output Primitives and Geometric Transformations You learnt how some basic geometric objects such as line segments, circles, ellipses and other curves are processed for plotting

Advantage of initiating the matrix form of translation, Normal 0 ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Method to draw an object by using four bézier curves, Suggest a method to d...

Suggest a method to draw an object as in figure using four Bézier curves of suitable degree Answer: Employ four quartic Bézier curves with the endpoint of one as the initial poi

Determine the refresh rate in the raster system, Example 1 : Determine the ...

Example 1 : Determine the number of memory bits essential for three bit plane frame buffer for the 512 x 512 raster Solution: Whole memory bits needed are 3 x 512 x 512 = 786,

What is view distance, What is view distance?  The view plane normal ve...

What is view distance?  The view plane normal vector is a directed line segment from the view plane to the view reference point. The length of this directed line segment is ref

Introduction of visible surface detection, Introduction of Visible Surface ...

Introduction of Visible Surface Detection For displaying a realistic presentation of the given 3Dimentional object, hidden surfaces and hidden lines should be identified fo

Windowing transformations - raster graphics and clipping, Windowing Transf...

Windowing Transformations - Raster Graphics and  Clipping From the above section of introduction, we understood the meaning of the viewport and term window that could again be

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