Color Graphics Adapter
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The Color Graphics Adapter (CGA), introduced in 1981, was IBM's first colour graphics card, and as such, colour computer display standard, for the PC. CGA could display 80×25 or 40×25 character text in 16 colours, 640×200 pixels bitmap graphics in 2 colours or 320×200 in 4 colours (PC video modes 0-6).The standard IBM CGA graphics card was equipped with 16 kilobytes of video memory. For business and wordprocessing use, IBM launced its Monochrome Display Adapter (MDA) at the same time as the CGA (the MDA produced a significantly better display sharpness in 80-column mode).
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This article was originally based on material from the Free On-line Dictionary of Computing and is used with permission under the GFDL.