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This is a list of software palettes used by computers. Systems that use a 4-bit or 8-bit pixel depth can display up to 16 or 256 colors simultaneously. Many personal computers in the early 1990s displayed at most 256 different colors, freely selected by software (either by the user or by a program) from their wider hardware's RGB color palette.
Simulated image as displayed using the Professional Graphics Controller 640 × 480 with 256 colors resolution . PGC supports: 640 × 480 with 256 colors from a palette of 4,096 [2] (12-bit RGB palette, or 4 bits per color component). Color Graphics Adapter text and graphics modes.
IBM 8514 is a graphics card manufactured by IBM and introduced with the IBM PS/2 line of personal computers in 1987. It supports a display resolution of 1024 × 768 pixels with 256 colors at 43.5 Hz (), or 640 × 480 at 60 Hz (non-interlaced).
The test chart shows the full 256 levels of the red, green, and blue (RGB) primary colors and cyan, magenta, and yellow complementary colors, along with a full 256-level grayscale. Gradients of RGB intermediate colors (orange, lime green, sea green, sky blue, violet, and fuchsia), and a full hue spectrum are also present.
640 × 480 graphics with 256 colors out of 16.7M (24-bit palette); 800 × 600 graphics with 65,536 colors at once; 1024 × 768 graphics with 256 colors out of 16.7M; Later clone boards offered additional resolutions: 640 × 480 graphics with 16.7M accessible colors at once (if it were possible with 640 × 480 pixels) (24-bit "true color");
Some games, including point-and-click adventures from Sierra On-line and Lucasfilm Games, as well as simulation and strategy titles from Microprose, solved this problem for low-resolution titles by supporting the MCGA's 320 × 200 256-color mode and picking the colors most resembling the EGA 16-color RGB palette, while leaving the other ...
Since an 8-bit color display can not display two images with different color maps at the same time, it is usually impossible to display two different 8-bit images on the same such display at the same time. In practice, in order to avoid this problem, most images do not use the full range of 256 colors.
LOGO.SYS is in fact an 8-bit RLE-encoded Windows bitmap file with a resolution of exactly 320×400 pixels at 256 colors. This is displayed in the otherwise little-used 320x400 VGA graphics mode, a compromise to allow the display of a 256-color image with high vertical (but not horizontal) resolution on all compatible systems, even those with plain VGA cards (which could only show 16 colors ...