Most people do not learn by studying abstract principles. Rather, they build up their knowledge gradually. The idea of a shipped system can be used to make learning to use a system easier. A shipped system provides a workable environment and sensible defaults for control values, so that a new user can immediately do useful work. OS/400 themselves provide good examples of this—the shipped system contains subsystems and output queues, which are ready for immediate use, but which may be subsequently modified if desired.
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