IBM PS/2 90 XP 486 Hardware Maintenance Reference page 51

Version level of the system programs (found on the system program
logo screen)
(1) Customized configuration:
create using the change configuration feature of the system
programs. For example, the user may have changed the serial
port default value, or changed a token ring address location.
IBM PS/2 Model 90 XP 486 and 95 XP 486 HMR
Backing Up the Current System Partition
A system configuration that users
¦ Copyright IBM Corp. 1990, 1992
6.2 - 2