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VGA (ang. Video Graphics Array) – standard kart graficznych IBM-PC ustanowiony w 1987 roku. Karty VGA były po raz pierwszy montowane w komputerach serii IBM PS/2. Karty VGA są zgodne z kartami EGA, a dokładniej funkcje VGA są nadzbiorem funkcji EGA. Niejako automatycznie karty VGA są zgodne z CGA i MDA.
Video Graphics Array (VGA) is a video display controller and accompanying de facto graphics standard, first introduced with the IBM PS/2 line of computers in 1987, [1] [2] [3] which became ubiquitous in the IBM PC compatible industry within three years. [4]
VGA text mode was introduced in 1987 by IBM as part of the VGA standard for its IBM PS/2 computers. [1] Its use on IBM PC compatibles was widespread through the 1990s and persists today for some applications on modern computers. [2]
There's a fair share of modesetting code available around the web. The basic steps involve calculating the needed register values, writing them to the VGA, then continue with drawing. You'll need: Port I/O: The VGA needs 8-bit read/writes, and 16-bit writes. MMIO: The VGA uses uncached byte accesses to 0xA0000-0xBFFFF.
The Video Graphics Array (VGA) connector is a standard connector used for computer video output. Originating with the 1987 IBM PS/2 and its VGA graphics system, the 15-pin connector went on to become ubiquitous on PCs, [1] as well as many monitors, projectors and HD television sets.
This document is structured in a way that explains the VGA hardware and its operation independent of the VGA BIOS modes, which will allow for better understanding of the capabilities of the VGA hardware.
6 cze 2022 · All VGA pinout signals except R, G, B are TTL level signals. The basic VGA display modes of 80x25 character mode and 640x480 in graphics mode are still supported by all modern graphic cards, independent of the extended modes supported by these cards.
