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graphics adaptor

   Also found in: Wikipedia 0.01 sec.
(hardware, graphics)graphics adaptor - (Or "graphics adapter", "graphics card", "video adaptor", etc.) A circuit board fitted to a computer, especially an IBM PC, containing the necessary video memory and other electronics to provide a bitmap display.

Adaptors vary in the resolution (number of pixels) and number of colours they can display, and in the refresh rate they support. These parameters are also limited by the monitor to which the adaptor is connected. A number of such display standards, e.g. SVGA, have become common and different software requires or supports different sets.


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The major screen display options supported by most graphics programs are 1) Hercules-compatible, high-resolution, monochrome display hardware (gray shades but no colors); 2) a color graphics adaptor (CGA) for low-resoultion color; 3) an enhanced color adaptor (EGA) with resolution close to the Hercules display; and 4) a video graphics adaptor, the new IBM standard, superior to the EGA in number of colors and resolution.
Matrox Parhelia graphics adaptors represent the highest quality 2D and 3D multi-display computing solutions available on the market.
 
 
 
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