(Video Graphics Array) A widely used analog interface between a computer and monitor that uses a 15-pin plug and socket. Older CRTs used VGA, and flat LCD panels typically have both analog VGA and digital DVI. However, newer PCs may have only DVI or DisplayPort outputs. See flat panel display, DVI and DisplayPort.
VGA Is Base Level
VGA officially refers to only 640x480 pixels with 16 or 256 colors. This base resolution is used to boot the PC. It is also used for troubleshooting in Safe Mode, because, at higher resolutions, the display driver may be the cause of problems.
VGA History
VGA was introduced on IBM's PS/2 line in 1987 and quickly replaced the earlier CGA and EGA interfaces, which were actually digital, but with lower resolution and fewer colors. In a short time, non-IBM vendors boosted resolution and colors, initially calling them "Super VGA." See CGA and EGA.
The high-density DB-15 VGA socket on PCs is contrasted here with the DB-9 and regular DB-15 sockets. See
Modern PC display adapters support a variety of SD and HD resolutions. This illustration compares the viewing area for most of them.
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