User's Manual

Appendix A
Equity III Specifications
CPU and Memory
16-bit CPU
Main memory
ROM
Math coprocessor
Controllers
Floppy disk
Hard disk
Interfaces
serial
Printer
Option slots
80286 microprocessor, 6 MHz clockrate
Real address @O&compatible) and pro-
tected virtual address (multi-tasking or
multi-user) modes
24-bit address and 16-bit data bus
640KB RAM on main system board;
expandable to 15.5MB maximum with
expansion cards
32KB
80287 support (optional)
Supports up to two drives available in two
formats: double-density (360KB) or high-
density (1.2MB); controller on main sys-
tem board
Supports up to two drives available in mul-
tiple formats (including 20MB and 40MB);
installs in option slot
RS-232C, programmable, asynchronous,
DB-9P male connector
Standard 8-bit parallel, DB-25S female
connector
Eight IBM PC-compatible input/output
expansion slots: six with X-bit bus and
two with 8-bit bus; seven slots available in
base configuration
A-l