Video Graphics Array(VGA) is the display hardware first introduced with theIBM PS/2line of computers in 1987, followingCGAandEGAintroduced in earlier IBM personal computers. Through widespread adoption, the term has also come to mean either an analogcomputer display standard, the 15-pinD-subminiatureVGA connector, or the 640×480resolutioncharacteristic of the VGA hardware.
VGA was the last IBM graphics standard to which the majority ofPC clonemanufacturers confirmed, making it thelowest common denominatorthat virtually all post-1990PCgraphics hardware can be expected to implement. It was officially followed by IBM'sExtended Graphics Array(XGA) standard but was effectively superseded by numerous slightly different extensions to VGA made byclonemanufacturers, collectively known asSuper VGA.
Today, the VGA analog interface is used for high definition video, including resolutions of1080pand higher. While the transmission bandwidth of VGA is high enough to support even higher resolution playback, there can be picture quality degradation depending on cable quality and length. How discernible this degradation depends on the individual's eyesight and the display, though it is more noticeable when switching to and from digital inputs likeHDMI orDVI.
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