Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!psuvax1!psuvm!WVNVM!U0A61 From: U0A61@WVNVM.BITNET (Bryan, Jerry) Newsgroups: bit.listserv.ibm-main Subject: An arcane MVS question Message-ID: Date: 2 Feb 90 17:03:08 GMT Sender: IBM Mainframe Discussion list Reply-To: IBM Mainframe Discussion list Lines: 6 Approved: NETNEWS@PSUVM Gateway X-Acknowledge-To: In-Reply-To: Message of 02/02/90 at 09:30:00 from HOWARD@BKLYN.BITNET >When U/M are the acceptable responses, U means USE the volume >currently mounted, and M means another volume is to me MOUNTED. This is the proper derivation of the U and M, as I recall, but through custom, U came to mean yes and M came to mean no in many contexts where USE and and MOUNT really did not make sense.