EPSON
ActionNote 4000
module or
numeric coprocessor
Computer Specifications
Main Unit
CPU
486SLC microprocessor; 33 MHz (and
simulated 8 MHz) clock speed; 1 MHz in
Suspend mode
Cache
1KB internal two-way set associative cache
System memory 4MB standard, 2MB soldered on main
system board and one 2MB memory
module; expandable to 8MB by replacing
the 2MB memory module with a 6MB
memory module; the first 640KB is
conventional memory and 128KB is used
for shadow RAM; the rest can be used as
extended or expanded memory
ROM BIOS
128KB on a single one-time programmable
ROM (includes system BIOS, VGA BIOS,
and the SETUP program)
Video RAM
256KB, 80ns video memory on main
system board; 256KB x 4 frame buffer
Shadow RAM
Clock/
calendar
Numeric
coprocessor
Controllers
Diskette drive
Hard disk
Video
PCMCIA
Speaker
Interfaces
External VGA
Parallel
Serial
Pointing device
or external
keyboard
AC adapter
Input Devices
Keyboard
Trackball
System shadowed at F0000 to FFFF, 64KB;
VGA BIOS shadowed at E0000 to E8000,
32KB
Real-time clock, calendar, and CMOS
RAM for configuration backed up by
built-in Dallas® DS 1287 or compatible
clock chip
Socket for optional Cyrix® Cx 83S87
coprocessor
Built-in controller for one external 3.5-inch
1.44MB diskette drive; supports 1.44MB
and 720KB diskette formats
Built-in controller for removable internal
hard disk drive
Cirrus® GD6410B 16-bit VGA controller
fully backward compatible with CGA and
EGA; supports a standard monochrome
LCD with a maximum resolution of
640x480x64 shades of gray and an
external monitor with resolutions up to
800 x 600 x 16 colors; simultaneous LCD
and CRT operation
Databook® DB86082 PCMCIA version 2.0
controller; Type II connector; supports
Type I and Type II memory and I/O cards
Built-in ISA compatible speaker controller;
internal
15-pin, D-sub, female connector for
external analog VGA or SVGA monitor
Centronics® compatible, 25-pin, D-sub,
female connector; standard 8-bit parallel
RS-232C, programmable, asynchronous,
9-pin, D-sub, male connector
6-pin, mini-DIN connector for a PS/2®
compatible pointing device or keyboard;
keyboard supported directly, pointing
device requires adapter
DC input port for external AC adapter;
4-pin, mini-DIN connector
79/80 (US) keys; embedded numeric
keypad and
F11 and F12
keys; inverted T
cursor control key layout
Built-in, two-button trackball
7/27/93
ActionNote 4000-1
