IBM Personal System/2 CL57 SX - Page 10

1.2.1 Microprocessor
The microprocessor interprets and carries out instructions. The 80386SX
microprocessor is a 32-bit processor with a 16-bit external data bus and a
24-bit external address bus. The microprocessor operates in two modes:
real-address mode and virtual-address (protected) mode. The
microprocessor speed is 20 MHz.
IBM PS/2 Model CL57 SX HMR
Microprocessor
_ Copyright IBM Corp. 1991
1.2.1 - 1