MTTR - Mean Time To Repair

MTU - Maximum Transmission Unit

MU - Modules Used

MU - Multi - User

MUA - Mail User Agent

MUAP - Motor Unit Action Potential

MUC - Message Understanding Conference

MUD - Multi - User Dimension

MUD - Multi - User Dungeon

MUI - Matrix User Interface

MULTICS - Multiplexed Information and Computing Service

MUNIN - Muscle and Nerve Interface Network

MUOS - Multiple User Operating System

MUSE - Multi - user Simulation Environment

MUSE - Multi - user Shared Environment

MUSH - Mail Users' S Shell

MUT - Minimum Up - Time

MUX - Multiplexer

MVA - Mean Value Analysis

MVAR - Mapped Variable

MVB - Multimedia Viewer Book

MVC - Multimedia Viewer Compiler

MVC - Model - View Controller

MVD - Multiuser Dungeon

MVDM - Multiple Virtual DOS Machines