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)