Epson ActionNote 4000 Product Information Guide - Page 1

rnemoty 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 EPSON ActionNote 4000 Shadow RAM Clock/ calendar Numeric coprocessor 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 Controllers Diskette drive Hard disk Video PCMCIA Speaker 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 Interfaces External VGA Parallel Serial Pointing device or external keyboard AC adapter 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 Input Devices Keyboard Trackball 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