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System I/O Controller
The system I/O controller integrates, on one chip, the
controller functions for the system's two serial ports,
enhanced bi-directional parallel port, and diskette drive.
The controller supports up to two drives (diskette or tape).
The controller is disabled through the system's BIOS if an
alternate diskette drive controller is installed.
Video Features
An integrated 32-bit BitBLT graphics accelerator on the 32-
bit PCI local bus provides high-performance graphics
capabilities. The PCI local bus graphics subsystem
features:
2 MB of video DRAM
24-bit High Color and True Color graphics.
The graphics accelerator speeds the movement of large
blocks of image data in video memory. As display resolu-
tions increase, image creation and movement into video
memory are critical factors in graphics performance.
The graphics accelerator is specifically designed for graph-
ics-intensive bit-block transfers, pattern-fill operations, text
and color pixel amplification, and scrolling. The accelerator
minimizes bus traffic by offloading the tasks normally per-
formed by the processor.
The High Color graphics feature provides up to 1024 by
768-pixel high-resolution color with up to 64K colors. The
True Color graphics feature provides up to 800 by 600-
pixel high-resolution color with up to 16.8 million colors.
In addition to the standard VGA connector, a VESA-
compliant feature connector is provided.
1-8 Features of Your System
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