Lotus 890 User Manual
A
Specifications
CPU and Memory
CPU
System speed
M e m o r y
R O M
Video RAM
Cache
Clock/calendar
486 DX4 microprocessor
installed in a PGA socket;
installed in a PGA socket;
includes 8KB of internal cache
in write-back mode and
in write-back mode and
integrated math coprocessor
Fast speed and slow speed
selectable in Setup
selectable in Setup
8MB
RAM
on
the system board
expandable up to 24MB using
a 4, 8, or 16MB memory
a 4, 8, or 16MB memory
expansion module
128KB Flash ROM device
containing the system and
video BIOS
and
Setup program
code. The BIOS is shadowed in
DRAM for faster access
512KB DRAM supports
resolutions up to 640 by 480
resolutions up to 640 by 480
in
256 colors on LCD and up to
1024 by 768 in 16 colors or
800 by 600 in 256 colors on
external monitor
800 by 600 in 256 colors on
external monitor
8KB
internal
Real-time clock, calendar, and
CMOS RAM; backed up by
internal battery
Specifications
A-1