Super VGA
| Typical VLB SVGA card | |
| Release date | August 31, 1987; 37 years ago (1987年08月31日) |
|---|---|
| Architecture | Chips and Technologies 82c441, ET3000 |
| History | |
| Predecessor | Video Graphics Array |
| Successor | XGA |
Super VGA (SVGA) or Extended VGA is a broad term that covers a wide range of computer display standards that extended IBM's VGA specification.[1] [2]
When used as shorthand for a resolution, as VGA and XGA often are, SVGA refers to a resolution of ×ばつ 600.[3]
History
[edit ]
In the late 1980s, after the release of IBM's VGA, third-party manufacturers began making graphics cards based on its specifications with extended capabilities. As these cards grew in popularity, they began to be referred to as "Super VGA".
This term was not an official standard, but a shorthand for enhanced VGA cards which had become common by 1988.[4] The first cards that explicitly used the term were Genoa Systems's SuperVGA and SuperVGA HiRes in 1987.[5]
Super VGA cards broke compatibility with the IBM VGA standard, requiring software developers to provide specific display drivers and implementations for each card their software could operate on. Initially, the heavy restrictions this placed on software developers slowed the uptake of Super VGA cards, which motivated VESA to produce a unifying standard, the VESA BIOS Extensions (VBE), first introduced in 1989,[6] to provide a common software interface to all cards implementing the VBE specification.[7]
Eventually, Super VGA graphics adapters supported innumerable modes.
Specifications
[edit ]
The Super VGA standardized the following resolutions:[6]
- ×ばつ 400 or ×ばつ 480 with 256 colors
- ×ばつ 600 with 24-bit color depth
- ×ばつ 768 with 24-bit color depth
- ×ばつ 1024 with 24-bit color depth
SVGA uses the same DE-15 VGA connector as the original standard, and otherwise operates over the same cabling and interfaces as VGA.
Early manufacturers
[edit ]Some early Super VGA manufacturers and some of their models, where available:
- Ahead Technologies (Not related to Nero AG, formerly Ahead Software)
- Amdek: VGA ADAPTER/132 (Tseng Labs chipset)[8]
- AST Research, Inc.: VGA Plus[9] (rebranded Paradise)
- ATI Technologies: VIP (82C451),[10] VGA Wonder
- Chips and Technologies: 82C451[10]
- Cirrus Logic: CL-GD410/420[11]
- Compaq: VGC Board (Paradise chipset)
- Everex
- Genoa Systems: Genoa VGA 5100-5400[12] (ET3000)[13]
- Orchid Technology: Designer VGA[14] (ET3000), Pro Designer Plus
- Western Digital's Paradise Inc.: VGA Plus[15] (PVGA1), VGA Plus 16, VGA Pro
- Sigma Designs: SigmaVGA (ET3000)
- STB Systems: VGA Extra/EM (ET3000),[16] [17]
- Video Seven: V-RAM VGA[18]
- Willow Peripherals: VGA-TV/Publisher's, VGA-TV + Genlock[19]
- Trident Microsystems: TVGA8800, TVGA8900, and TVGA9000 series
Gallery
[edit ]-
ALiCat M3147V SVGA video card
-
Cirrus Logic GD5429 VLB SVGA video card
-
Early 1996 IGS IGA1682_A PCI SVGA video card
-
S3 805 VLB SVGA video card
-
WDC ISA SVGA video card
References
[edit ]- ^
Ferraro, Richard F. (1990). Programmer's Guide to the EGA and VGA Cards (2nd ed.). Addison-Wesley. p. 596. ISBN 0-201-57025-4.
Nearly all VGA cards manufactured today exceed the VGA standard [...] in some significant way. These new and improved VGAs have been labeled Super VGAs, Extended VGAs or Advanced VGAs.
- ^ "Graphics Cards". DOS Days. Retrieved 2025年02月16日.
VGA was the last IBM graphics standard to which the majority of PC clone manufacturers conformed, [...] It was officially followed by IBM's Extended Graphics Array (XGA) standard, but was effectively superseded by numerous slightly different extensions to VGA made by clone manufacturers, collectively known as Super VGA.
- ^ "Projector Guide - Resolution | Epson US". epson.com. Retrieved 2020年08月17日.
- ^ Richter, Jake (1990年07月16日). "High-Resolution Video Boards". InfoWorld . 12 (29). InfoWorld Media Group, Inc.: 55. ISSN 0199-6649.
- ^ Gabel, David (December 1, 1987). "Plug-compatible vendors take aim at VGA card". PC Week. 4 (48). Ziff-Davis: 148 – via Gale.
- ^ a b "SUPER VGA BIOS EXTENSION Standard # VS891001 › Gemixtes". 2013年12月11日. Archived from the original on 2013年12月11日. Retrieved 2022年12月27日.
- ^ VESA BIOS Extension (VBE) Core Functions Standard 3.0 (PDF). Milpitas, CA: Video Electronics Standards Association. 16 September 1998. p. 3.
- ^ Juris, Robbin; Miller, Catherine; Ricciardi, Salvatore; Tate-Austin, Priscilla (1988年11月15日). "Small-Footprint 386 PCs". PC Mag . 7 (2). Ziff Davis, Inc.: 98. ISSN 0888-8507.
- ^ stason.org, Stas Bekman: stas (at). "AST VGA PLUS (202262-001, 002, 003) video card Settings and Configuration". stason.org. Retrieved 2022年12月27日.
- ^ a b Unknown ATI 8-bit videocard, Google Groups
- ^ Need info on old Video Seven VGA card, Google Groups
- ^ stason.org, Stas Bekman: stas (at). "SUPERVGA HIRES-10 5200-10, SUPERVGA 5100 video card Settings and Configuration". stason.org. Retrieved 2022年12月27日.
- ^ "Motherboards/Laptops built-in graphics".
- ^ stason.org, Stas Bekman: stas (at). "DESIGNER VGA video card Settings and Configuration". stason.org. Retrieved 2022年12月27日.
- ^ stason.org, Stas Bekman: stas (at). "PARADISE VGA PLUS 16 video card Settings and Configuration". stason.org. Retrieved 2022年12月27日.
- ^ VGA, or what to do with my tax return!, Google Groups
- ^ VGA monitor and adapter choices, Google Groups
- ^ IBM's EGA and VGA, Google Groups
- ^ Poor, Alfred (July 1989). "VGA and NTSC: Putting your Program on TV". PC Mag . 8 (13). Ziff Davis, Inc.: 158. ISSN 0888-8507.
