Said of machines delivered without an operating system (compare bare metal). "We ordered 50 systems, but they all arrived nude, so we had to spend a an extra weekend with the installation tapes." This usage is a recent innovation reflecting the fact that most PC clones are now delivered with DOS or Microsoft Windows pre-installed at the factory. Other kinds of hardware are still normally delivered without OS, so this term is particular to PC support groups.
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Nearby terms: NuBus « nu-calculus « NUCLEOL « nude » nuke » null » nullary