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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.
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 ...
Mode 13h is something of a curiosity, because the VGA is a planar device from a hardware perspective, and not suited to chunky graphics operation. The VGA has 256 KiB of video memory consisting of 4 banks of 64 KiB, known as planes (or 'maps' in IBM's documentation).
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");
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.
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.
Number Nine developed the first 128-bit graphics processor (the Imagine 128), as well as the first 256-color (8-bit) and 16.8 million color (24-bit) cards. [1] The name of the company, as well as many of its products (e.g., Revolution, Imagine, Pepper, Ticket to Ride) refer to Beatles songs.
A different set of 16 simultaneous colors is available using an NTSC TV or composite monitor by using artifact color techniques, with independent groups having demonstrated much larger color sets of over 256 colors See Color Graphics Adapter#High color depth. The CGA RGBI palette is a variant of the 4-bit RGBI schema, arranged internally like ...