Source : Free On-Line Dictionary of Computing

MultiTOS
     
         (MTOS) A new version of {TOS}.  MultiTOS's
        main advantage was support for {pre-emptive multitasking} and
        {memory protection}.  It also supported the latest (and far
        superior) versions of {GEM}.  MultiTOS was supplied with the
        Falcon030 range of computers from {Atari}.
     
        It is a little known fact that the MultiTOS {kernel} was based
        heavily on the {freeware} OS {MinT} which was developed long
        before Atari got MultiTOS working.
     
        (1997-01-10)