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The Xterm terminal emulator. In the early 1980s, large amounts of software directly used these sequences to update screen displays. This included everything on VMS (which assumed DEC terminals), most software designed to be portable on CP/M home computers, and even lots of Unix software as it was easier to use than the termcap libraries, such as the shell script examples below in this article.
Here are grouped those full RGB hardware palettes that have the same number of binary levels (i.e., the same number of bits) for every red, green and blue components using the full RGB color model. Thus, the total number of colors are always the number of possible levels by component, n, raised to a power of 3: n×n×n = n 3.
In addition to protocols used in commercially available terminal machines, xterm added a few protocols that have been adopted by other terminal emulators, such as: Mouse tracking: Support for buttons 4 and 5 was added in patch 120. [14] 16-color terminal protocol: Added in patch 39. [15] 256 colors terminal protocol: Added in patch 111. [16]
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.
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These full RGB palettes employ the same number of bits to store the relative intensity for the red, green and blue components of every image's pixel color. Thus, they have the same number of levels per channel and the total number of possible colors is always the cube of a power of two.
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The number of colors available in a GIF or a 256-color (8-bit) bitmap. The number of characters in extended ASCII [3] and Latin-1. [4] The number of columns available in a Microsoft Excel worksheet until Excel 2007. [5] The split-screen level in Pac-Man, which results from the use of a single byte to store the internal level counter. A 256-bit ...