Color Graphics Adapter

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Color Graphics Adapter

(hardware, graphics)
(CGA) One of IBM's earliest hardware video display standards for use in IBM PCs. CGA can display 80*25 or 40*25 text in 16 colors, 640*200 pixels of graphics in two colors or 320*200 in four colors (IBM PC video modes 0-6). It is now obsolete.
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For users who do not have a color graphics adaptor (CGA) or better graphics, ECGs for each case are supplied with the documentation.
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.