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Encyclopedia > Super Video Graphics Array

Super Video Graphics Array, almost always abbreviated to Super VGA or just SVGA is a broad term that covers a wide range of computer display standards. A BlueGene supercomputer cabinet. ... A monitor is an interface between the computer and the operator. ... Various computer display standards or display modes have been used in the history of the personal computer. ...

15-pin D-sub port
15-pin D-sub port

Originally, it was an extension to the VGA standard first released by IBM in 1987. Unlike VGA—a purely IBM-defined standard—Super VGA was defined by the Video Electronics Standards Association (VESA), an open consortium set up to promote interoperability and define standards. When used as a resolution specification, in contrast to VGA or XGA for example, the term SVGA normally refers to a resolution of 800 × 600 pixels. Image File history File linksMetadata Download high-resolution version (1547x1160, 306 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Super Video Graphics Array VGA connector Metadata This file contains additional information, probably added from the digital camera... Image File history File linksMetadata Download high-resolution version (1547x1160, 306 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Super Video Graphics Array VGA connector Metadata This file contains additional information, probably added from the digital camera... A male DE-9 connector. ... VGA redirects here. ... International Business Machines Corporation (known as IBM or Big Blue; NYSE: IBM) is a multinational computer technology corporation headquartered in Armonk, New York, USA. The company is one of the few information technology companies with a continuous history dating back to the 19th century. ... 1987 (MCMLXXXVII) was a common year starting on Thursday of the Gregorian calendar. ... The Video Electronics Standards Association (VESA) is an international body that has issued a number of standards, mostly relating to the functioning of video peripherals in IBM PC compatible computers. ...


Super VGA was first defined in 1989. In that first version, it called for a resolution of 800 × 600 4-bit pixels. Each pixel could therefore be any of 16 different colours. It was quickly extended to 1024 × 768 8-bit pixels, and well beyond that in the following years. 1989 (MCMLXXXIX) was a common year starting on Sunday of the Gregorian calendar. ...


Although the number of colours was defined in the original specification, this soon became irrelevant as (in contrast to the old CGA and EGA standards) the interface between the video card and the VGA or Super VGA monitor uses simple analog voltages to indicate the desired colour depth. In consequence, so far as the monitor is concerned, there is no theoretical limit to the number of different colours that can be displayed. Note that this applies to any VGA or Super VGA monitor. The Color Graphics Adapter (CGA), introduced in 1981, was IBMs first color graphics card, and the first color computer display standard for the IBM PC. The standard IBM CGA graphics card was equipped with 16 kilobytes of video memory. ... The Enhanced Graphics Adapter (EGA) is the IBM PC computer display standard specification located between CGA and VGA in terms of graphics performance (that is, colour and space resolution). ... It has been suggested that this article or section be merged with Analog electronics. ...


While the output of a VGA or Super VGA video card is analog, the internal calculations the card performs in order to arrive at these output voltages are entirely digital. To increase the number of colours a Super VGA display system can reproduce, no change at all is needed for the monitor, but the video card needs to handle much larger numbers and may well need to be redesigned from scratch. Even so, the leading graphics chip vendors were producing parts for high-colour video cards within just a few months of Super VGA's introduction. Highcolour (or Hicolour, Highcolor, Hicolor, Thousands on a Macintosh) graphics is a method of storing image information in a computers memory such that each pixel is represented by two bytes. ...


On paper, the original Super VGA was to be succeeded by Super XGA, but in practice the industry soon abandoned the attempt to provide a unique name for each higher display standard, and almost all display systems made between the late 1990s and the early 2000s are classed as Super VGA. SXGA is an abbreviation for Super eXtended Graphics Array referring to a standard monitor resolution of 1280 × 1024 pixels. ... This article is 150 kilobytes or more in size. ... This article is becoming very long. ...


Monitor manufacturers sometimes advertise their products as XGA or Super XGA. In practice this means little, since all Super VGA monitors manufactured since the later 1990s have been capable of at least XGA and usually considerably higher performance. Nineteen inch (48 cm) CRT computer monitor A computer display, monitor or screen is a computer peripheral device capable of showing still or moving images generated by a computer and processed by a graphics card. ...


References

    Computer display standards
    v  d  e
    Size comparison
    Video hardware Size comparison
    MDA | Hercules | CGA | EGA | VGA | MCGA | 8514 | XGA
    Display resolutions
    QQVGA | QVGA | VGA | SVGA | XGA | XGA+ | SXGA | SXGA+ | UXGA | QXGA | QSXGA | QUXGA | HXGA | HSXGA | HUXGA
    Widescreen variants
    WXGA | WSXGA/WXGA+ | WSXGA+ | WUXGA | WQXGA | WQSXGA | WHXGA | WHSXGA | WHUXGA | WQUXGA

      Results from FactBites:
     
    Super Video Graphics Array - Wikipedia, the free encyclopedia (418 words)
    Super Video Graphics Array, almost always abbreviated to Super VGA or just SVGA is a broad term that covers a wide range of computer display standards.
    On paper, the original Super VGA was to be succeeded by Super XGA, but in practice the industry soon abandoned the attempt to provide a unique name for each higher display standard, and almost all display systems made between the late 1990s and the early 2000s are classed as Super VGA.
    Most Super VGA monitors manufactured since the early 1990s, and all Super VGA monitors manufactured since the later years of that decade have been capable of at least XGA and usually considerably higher performance.
    Video Graphics Array - Wikipedia, the free encyclopedia (1071 words)
    SVGA was extended from VGA, defined by Video Electronics Standards Association instead of IBM.
    VGA is referred to as an "array" instead of an "adapter" because it was implemented from the start as a single chip (a gate array), replacing the Motorola 6845 and a full-length ISA board full of discrete components that the MDA, CGA, and EGA used.
    The video memory of the VGA is mapped to the PC's memory via a window in the range between 0xA0000 and 0xC0000 in the PC's real mode address space.
      More results at FactBites »


     

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