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- From: U54345@uicvm.uic.edu (Darius Vaskelis)
- Newsgroups: comp.sys.ibm.ps2.hardware
- Subject: Re: XGA Questions
- Message-ID: <92309.231014U54345@uicvm.uic.edu>
- Date: 5 Nov 92 05:10:14 GMT
- References: <BwqGpq.HFJ@unx.sas.com> <92301.010023U54345@uicvm.uic.edu>
- <1992Nov3.223410.9982@ucsu.Colorado.EDU>
- Organization: University of Illinois at Chicago
- Lines: 19
-
- While XGA, XGA-2, and SVGA can share resolutions and frequencies, how they
- accomplish the display is how they differ. SVGA just takes a VGA and adds some
- more memory to it, a few more screen modes, etc. Essentially, it's an
- extension to how a VGA works.
-
- The XGA (and XGA-2) is a 32-bit bus-mastering graphics standard, and it stores
- its memory in a totally different location from VGA and even has all sorts of
- extra features, like a graphics plane for a cursor that's independent from
- the rest of the display. It's optimized for speed, especially in GUIs where
- a lot of bit block transfers are needed. The XGA itself does the work, rather
- than the main CPU for VGA cards.
-
- - Darius
- I do not speak for IBM Corp.
- --
- Darius Vaskelis (IBM Marketing/Technical Support)
- University of Illinois Account Team
- One IBM Plaza 15-WAE Telephone: (312) 245-3532
- Chicago, IL 60611 Internet: U54345@uicvm.uic.edu
-