Appendix A Specifications; Cpu And Memory; Controllers - Epson Apex 20020, 20040 User Manual

Appendix A
Specifications

CPU and Memory

16-bit CPU
Main memory
ROM
Math coprocessor

Controllers

Diskette
Hard disk
80286 microprocessor; 8 or 12 MHz
clockrate, switch-selectable
Real address (8086-compatible) and
protected virtual address (multi-tasking)
modes
24-bit address and 16-bit data bus
640KB RAM on memory card;
expandable to 15.5MB maximum with
expansion cards
32KB, expandable to 64KB, selectable
alternate ROM for custom use
80287 (8 MHz) support (optional)
Supports up to two drives available in any
of four formats: double-density (360KB),
double-density (720KB), high-density
(1.2MB), or high-density (1.44MB);
controller on multi-function card
Supports up to two drives available in
multiple formats; installs in 16-bit option
slot, ST 506/412 interface
Specifications
A-1