A graphics card, sometimes called a graphics adapter, video card or graphics accelerator, is a computer component which converts digital data into a graphical form which can be displayed on a monitor.
The initial role of a graphics card was to send pixels to a screen, as well as a variety of simple graphical manipulations:
* Moving blocks (such as the mouse cursor);
* ray tracing;
* polygon tracing;
* etc.
More recent graphics cards now have processors built for handling complex 3D graphical scenes.
Diagram of a graphics card
A video card's main components are:
* A Graphical Processing Unit (or GPU for short), the heart of a graphics card, which processes images based on the encoding being used. The GPU is a specialised processor with advanced image processing capabilities, especially for 3D graphics. Because of the high temperatures that the graphics processor can reach, a radiator and fan are often mounted on it.
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1:44 PM on October 06, 2008
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