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In the Wingine implementation, video data is sent from the CPU via the
existing memory bus directly into VRAM and the CPU accesses VRAM
like system memory, at CPU speed. Video data then travels to the
Wingine graphics accelerator and on to the display. This simplified method
processes the data in fewer steps, resulting in greater video performance
and avoiding the bottlenecks and timing problems associated with ISA bus
and local bus technologies. Moreover, video performance is further
enhanced because VRAM is capable of sending and receiving data at the
same time. And when the CPU is upgraded with either an OverDrive
processor or a faster CPU card, Wingine performance also increases,
since the CPU sends video data directly into the VRAM, without any
intervening component bottlenecks
Q3.
Does Wingine support MS-DOS applications?
A.
Yes. To support MS-DOS applications, Epson has included a variety of
VGA device drivers and special utilities on the VGA diskettes included
with the Progression 4. Super VGA support is available for these popular
applications:
Autodesk Autocad and AutoCad/386, versions 10 and 11
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CADKEY, version 3.51
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CADVANCE, version 3.50
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Framework Ill and IV
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GEM, version 3.0
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Generic CADD, Level 3, version 1.1
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Lotus 1-2-3, version 2.0 and Lotus Symphony, versions 1.0 and 1.1
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Microsoft Word, versions 5.0 and 5.5
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Ventura Publisher, version 2.0
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VersaCad Design and VersaCAD 386, version 5.4
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VESA Driver, version 1.0
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WordPerfect, versions 5.0 and 5.1
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WordStar, versions 4.0 and 5.0
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PSB No: S-0160
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