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System Board (720, 720C)
1 External Input Device Connector
2 System-Expansion Connector (240-pin)
3 Parallel Connector
4 Serial Connector
5 Password-override Connector
6 PCMCIA Connector
7 Base Memory Card Interface
8 Video Card Interface
9 Backup Battery Connector
1 Hard Disk Drive Connector
11 Processor Card Interface
12 Keyboard Control Card Interface
13 Speaker Connector
14 Voltage Converter Interface
15 Diskette Drive Interface
16 System Status Indicator Connector
(Front side)
(Rear side)
112 IBM Mobile Systems HMM