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Hardware Level VGA and SVGA Video Programming Information Page
+ +
Video Programming Glossary  +
+Introduction +
        This page is a glossary +covering video programming related terms.  It is extremely difficult +for me to determine which terms should be included in this page, thus if +you have come here looking for a particular term and are dismayed at not +finding it listed here, please send a note with the Feedback +Form including the term in the body of the message, and it will be +added here. +
------ C ------
+ + +

CLUT -- see Color Look-Up Table + +

Color Look-Up Table -- see +Palette Look-Up Table +
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------ D ------
+ + +

DAC -- acronym for Digital to Analog Converter, +which is a integrated circuit that converts intensity values to analog +signal values.  This is used in video chipsets to produce the analog +signals that are sent to the monitor.  Some DACs, known as RAMDACs +contain a palette look-up table. + +

Digital to Analog Converter -- see DAC +

------ F ------
+ + +

Frame Buffer -- RAM that is part of the graphics hardware that +stores the pixel values that are converted into color intensity. +

------ P ------
+ + +

Palette Look-Up Table -- a small table of +RAM that contains a set of RGB intensity values for +each index, of which there are 256 locations.  The information in +this table is used by the DAC to generate the analog +signal. Also known as a Color Look-Up Table or CLUT. +

------ R ------
+ + +

RAMDAC -- A DAC that contains a built-in palette +look-up table. + +

RGB -- acronym for Red, Blue & Green, which +describes the three primary colors of light that a CRT generates to produce +the range of visible colors. +

------ S ------
+ + +

Super VGA -- see SVGA + +

SVGA -- acronym for Super-VGA, +which is a term applied to chipsets and the advanced functionality of those +chipsets that are above and beyond the capabilities of the original IBM +VGA chipset. +

------ V ------
+ + +

VGA -- acronym for Video Graphics Array, which +is the term for IBM's successor to the EGA graphics chipset.  This +term is also used when describing register compatible functions of other +chipsets such as SVGA chipsets. + +

Video Graphics Array -- see VGA +
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Notice: All trademarks used or referred to on this page are the property +of their respective owners. +
All pages are Copyright © 1997, 1998, J. D. Neal, except where +noted. Permission for utilization and distribution is subject to the terms +of the FreeVGA Project Copyright License. +
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