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![The IBM internal XGA logo, designed by Rand Paul[1]](view_image.php?q=Extended_Graphics_Array&sq=Sri Lanka&lang=en&file=File:XGA-1992.svg) | |
| Release date | 1990 |
|---|---|
| History | |
| Predecessor | 8514/A |
| Successor | XGA-2 |
The eXtended Graphics Array (usually called XGA) is a graphics card manufactured by IBM and introduced for the IBM PS/2 line of personal computers in 1990 as a successor to the 8514/A. It supports, among other modes, a display resolution of 1024 × 768 pixels with 256 colors at 43.5 Hz (interlaced), or 640 × 480 at 60 Hz (non-interlaced) with up to 65,536 colors.[2][3] The XGA-2 added an 800 × 600 65,536 color mode and 1024 × 768 60 Hz non-interlaced.[2]
The XGA was introduced at $1095 with 512K VRAM and additional $350 for the 512 KB memory expansion (equivalent to $2600 and $840, respectively, in 2024).[4][2] As with the 8514/A, XGA required a Micro Channel architecture bus at a time when ISA systems were standard, however due to more extensive documentation and licensing ISA clones of XGA were made. XGA was integrated into the motherboard of the PS/2 Model 95 XP 486.[3]
An improved version called XGA-2 was introduced in 1992 at $360, worth $810 in 2024 dollars.
XGA gives its name to the resolution 1024 × 768, as IBM's VGA gave its name to 640 × 480, despite the IBM 8514/A and PGC cards respectively supporting those resolutions prior to the eponyms.
- ^ "XGA Logo". Paul Rand Foundation. Retrieved 25 September 2021.
- ^ a b c Jon Peddie (8 April 2019). "Famous Graphics Chips: IBM's XGA. The End of an Era". IEEE.org.
- ^ a b Julio Sanchez; Maria P. Canton (2003). The PC Graphics Handbook. Boca Raton: CRC Press. ISBN 9780203010532.
- ^ 1634–1699: McCusker, J. J. (1997). How Much Is That in Real Money? A Historical Price Index for Use as a Deflator of Money Values in the Economy of the United States: Addenda et Corrigenda (PDF). American Antiquarian Society. 1700–1799: McCusker, J. J. (1992). How Much Is That in Real Money? A Historical Price Index for Use as a Deflator of Money Values in the Economy of the United States (PDF). American Antiquarian Society. 1800–present: Federal Reserve Bank of Minneapolis. "Consumer Price Index (estimate) 1800–". Retrieved 29 February 2024.