:nude: adj. 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.
-- The AI Hackers Dictionary