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 an extra weekend with the installation disks." This usage is
   a  recent  innovation reflecting the fact that most IBM-PC clones are
   now  delivered with an operating system pre-installed at the factory.
   Other  kinds  of hardware are still normally delivered without OS, so
   this term is particular to PC support groups.

[glossary]