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The color palette data is not stored in memory per se, but rather modified, read and written to by low level I/O port calls, to the DAC registers. The palette data was often copied from the low level ports one at a time to a spot in memory after the screen data so the colors could be saved along with the pixels they belonged to.
Prometheus Products, Inc. was an American computer peripheral manufacturer active from 1981 to 1996. The company primarily manufactured modems and sound cards for personal computers for the bulk of its existence.
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.
So playing audio from other phones or other PCs using Bluetooth to a PC running Windows 8.x is not possible. Windows 7 supported both A2DP source and sink roles. Network Map is removed from Network and Sharing Center; Connect to a Network Projector (netproj.exe) introduced in Windows Vista is deprecated as an optional component in Windows 8.1.
Each screen character is represented by two bytes aligned as a 16-bit word accessible by the CPU in a single operation. The lower (or character) byte is the actual code point for the current character set, and the higher (or attribute) byte is a bit field used to select various video attributes such as color, blinking, character set, and so forth. [6]
The 8-bit RGB palettes (also known as 3-3-2 bit RGB) use 3 bits for each of the red and green color components, and 2 bits for the blue component, due to the lesser sensitivity of the common human eye to this primary color. This results in an 8×8×4 = 256-color palette as follows:
A port of Windows 8 for ARM architecture, Windows RT, is marketed as an edition of Windows 8, but was only included as pre-loaded software on devices specifically developed for it. [147] Windows 8 was distributed as a retail box product on DVD, and through a digital download that could be converted into DVD or USB install media.
The exact amount of reduction differed between monitor models: the original IBM 5153 Personal Computer Color Display reduces the green signal's amplitude by about one third, [12] while the IBM 5154 Enhanced Color Display internally converts all 4-bit RGBI color numbers to 6-bit ECD color numbers, [8] which amounts to halving the green signal's ...