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Video RAM
Shadow RAM
Memory
relocation
Cache
Math
coprocessor
Clock/
calendar
Controllers
Video
Diskette
Hard disk
512KB DRAM on main system board;
expandable to 1MB using four 4 x 256
DIP-type DRAM chips
Supports shadowing of system and video
BIOS ROM into RAM
Supports relocation of 128KB of memory
from A0000h to BFFFFh
1KB of internal cache on processor
Cyrix 83S87-25
Real-time clock, calendar, and 114 bytes of
CMOS RAM socketed on main system
board with built-in rechargeable NiCad
battery backup
Cirrus Logic® GD5426 high speed super
VGA local bus controller; provides
TrueColor support and resolutions up to
1280 x 1024 in 16 colors (interlaced) with
1MB of video RAM
Controller on main system board supports
two diskette drives or one diskette drive
and one tape drive
IDE interface on main system board
supports up to two IDE hard disk drives
with built-in controller; BIOS provides
hard disk auto-sensing function
A-2 Specifications