Personal Computer User Manual

Appendix F
Specifications
CPU and Memory
16-bit CPU
On-board memory
ROM
Math coprocessor
Controllers
Diskette
Hard disk
80386SX microprocessor, 16 MHz or
simulated 8 MHz clockrate, selectable
through a switch or through software
24-bit address and 16-bit data bus
1MB RAM on main system board;
expandable using 256KB or 1MB SIMMs
to 2MB, 4MB, 6MB, 8MB, 10MB, 12MB,
or 14MB (maximum); SIMMs must be
70ns access speed or faster
64KB
80387SX ( 16 MHz) support; coprocessor is
optional
Supports up to two drives in any of four
formats: 3 ‘/z-inch, high-density, 1.44MB;
3 i/z-inch, double-density, 720KB;
5 ‘/s-inch, high-density, 1.2MB; or
5 i/4-inch, double-density, 360KB;
controller on main system board
Supports up to two drives available in
40MB or 100MB; embedded controller
Specifications F-1