mp/m

from The Free On-line Dictionary of Computing (8 July 2008)

Multi-tasking Program for Microcomputers
MP/M

   <operating system> (MP/M) An {operating system}, written by
   {Gary Kildal}, very similar to {CP/M}, also written by Kildal.
   MP/M allowed {virtual terminals}, each of which could execute
   an {application} while another terminal was called to the
   screen with a special key combination.

   See also {Control Program for Microcomputers}.

   (1996-09-08)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

MPM
       Metra Potential Method

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

MPM
       Multi Processing Modul (Apache)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

MPM
       Multi-user ??? Program for Microcomputers (CP/M, OS, DR), "MP/M"