Said of machinEs dElivErEd without an opErating systEm (comparEEf="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=barE mEtal">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. [Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=Jargon FilE">Jargon FilE] (1994-12-13)