1.2 System Board Features
The major features of the system board are:
¯ CMOS RAM and CMOS RAM extension
¯ Diskette-drive controller
¯ External input device connector
¯ Optional communication adapter slot
¯ System expansion connector
¯ Suspend and resume functions.
CMOS RAM and CMOS RAM Extension
Diskette-Drive Controller
External Input Device Connector
Optional Communication Adapter Slot
System Expansion Connector
Suspend and Resume Functions
IBM PS/2 Model CL57 SX HMR
_ Copyright IBM Corp. 1991