Extended GraphicsAdapter (XGA) is an improved standard over VGA and SVGA image resolution. XGA, which is compatible withVGA, has a screen resolution of 640 x 480 pixels with a color depth of 16 bits, which corresponds to High Color, or with a higher resolution of
1,024 x 768 pixels a color depth of 8 bits, which allows 256 colors to be displayed. In addition to the version mentioned above, there is also a screen resolution of 1,152 x 864, which is also for a 4:3 aspect ratio, as well as a format for Sun computers and for AppleMacintosh
XGA has several modes: a fully compatible VGA mode, an extended VGA mode with the specified resolution, and a text mode with 132 columns. Theextended XGA-2 version, also known
asSuper-XGA (SXGA), has an image resolution of 1,072 x 768 pixels, but with a reduced color depth of 256 colors. The horizontal frequency can be 68 kHz
.Hexadecatuple Super XGA (HSXGA) with 5,120 x 4,096 pixels, Quadruple Super XGA (QSXGA) with 2,560 x 2,048 pixels and Quadruple XGA (QXGA) with 2.048 x 1,536 pixels, as well as the display formats with a larger aspect ratio such as Quadruple Wide XGA (QWXGA) with 2,560 x 1,600 pixels, Wide Hexadecatuple Super XGA (WHSXGA) with 6,400 x 4,096 pixels, Wide-XGA (WXGA) with various resolutions.