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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!infonode!drudetb
- From: drudetb@infonode.ingr.com (Ted B. Drude)
- Subject: Re: VESA --> Defined (?) <--
- Message-ID: <1992Dec16.221803.23016@infonode.ingr.com>
- Organization: Intergraph Corporation, Huntsville, AL.
- References: <1992Dec16.021145.16205@julian.uwo.ca>
- Date: Wed, 16 Dec 1992 22:18:03 GMT
- Lines: 24
-
- In article <1992Dec16.021145.16205@julian.uwo.ca> wlsmith@valve.heart.rri.uwo.ca (Wayne Smith) writes:
- >
- >Now unless the VESA standard includes elements of bus construction and
- >interface, it seems that VESA and "local bus video" are two different and
- >unrelated things. A VESA compatible video card is one thing, while a
- >local bus video card is another.
- >I can't say that having an ISA bus video card with VESA has been any
- >great thing, especially with a standard ET4000 chipset. But maybe VESA
- >becomes more important with the more "exotic" co-processed chipsets.
-
- VESA = Video Equipment Standards Association
-
- They set standards for all sorts of things, like SVGA BIOS functions,
- SVGA monitor vertical refresh frequencies, AND the VL-bus local bus
- definitions. If you are thinking that the VESA standard that defines
- SVGA BIOS functions is the same exact VESA standard that defines local bus,
- then that's where the confusion lies. They are NOT the same standard,
- even though they are both defined by VESA.
-
- Having an ISA bus SVGA card that supports VESA standard BIOS
- functions is completely different from having a motherboard/graphics
- card that has VESA standard VL-bus slots.
-
- - Ted D.
-