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The shadow RAM feature speeds up processing by moving the
system and video BIOS into the RAM area of memory.
With 512KB of video RAM, the VGA controller supports
standard resolutions up to 640 x 480 in 16 colors and extended
resolutions up to 640 x 480 in 256 colors or 1024 x 768 in
16 colors (interlaced or non-interlaced). With 1MB of video
memory, the controller supports extended resolutions up to
1024 x 768 in up to 256 colors.
VGA
Utilities
Your computer comes with special VGA drivers and utilities
for use with the integrated VGA interface. With these drivers,
you can take advantage of the extended VGA features such as
high resolutions and 132-column text mode when you run
popular application programs. Drivers for common
applications are described in Chapter 5.
Optional Equipment
You can easily upgrade your computer by installing a wide
variety of options, as described in Chapters 3 and 4.
Microprocessor
You can upgrade your system with these microprocessors:
486SX/33
486DX/33
486DX2/50
486DX2/66.
2
Introduction