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Video BIOS is the BIOS of a graphics card in a (usually IBM PC-derived) computer. It initializes the graphics card at the computer's boot time. It also implements INT 10h interrupt and VESA BIOS Extensions (VBE) [ 1 ] [ 2 ] for basic text and videomode output before a specific video driver is loaded.
DPMS is a hardware standard that allows graphics cards to communicate with DPMS-compliant monitors via a special signalling system that can be used with existing graphics controllers and monitor cables. This signalling system allows the graphics card to tell the monitor to go into a number of different power management or power saving states ...
The first PC video adapter card that had an option ROM was the IBM EGA, introduced in 1984 with the IBM PC AT. (The Hercules Graphics Card had no option ROM and no BIOS support except for its MDA-compatible features, for which it relied in the IBM-supplied MDA support in the main BIOS.)
The specific BIOS graphics mode influences which palettes are available. BIOS Mode 4 offers two palettes: green/red/brown and cyan/magenta/white. As with the text modes 0 and 2, Mode 5 disables the color burst to allow colors to appear in grayscale on composite monitor. However, unlike the text modes, this also affects the colors displayed on ...
Some graphics cards had a workaround that involves re-flashing the graphics card's BIOS with an older Gen 1 BIOS, however this effectively made it into a PCI Express 1.0 card, which is unable to utilize PCI Express 2.0 functions. This could be considered a non-issue however, since the card itself could not even utilize the full capacity of the ...
A modern consumer graphics card: A Radeon RX 6900 XT from AMD. A graphics card (also called a video card, display card, graphics accelerator, graphics adapter, VGA card/VGA, video adapter, display adapter, or colloquially GPU) is a computer expansion card that generates a feed of graphics output to a display device such as a monitor.
For example, an IBM PC might have either a monochrome or a color display adapter (using different display memory addresses and hardware), but a single, standard, BIOS system call may be invoked to display a character at a specified position on the screen in text mode or graphics mode. The BIOS provides a small library of basic input/output ...
This difference (and incompatibility) can be overcome by changing the palette registers to contain two copies of an 8-color palette. A VGA-capable video card must implement code page 437 characters in its Video BIOS [citation needed]; VGA text fonts of other European languages, such as German and Russian, may be defined in other code pages.
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