| Abbreviation | Definition |
|---|---|
| MOS | Metal Oxide Semiconductor |
| MOS | metal-oxide-semiconductor |
| MOSC | Modified Original Smart Card |
| MOSFET | MetalOxideSemiconductor Field-Effect Transistor |
| MOSFET | Metal–Oxide–Semiconductor Field-Effect Transistor |
| MOSS | Macintosh OS (Operating System) Startup Screen |
| MOST | Magneto-Optical Storage Technology |
| MOT | Microwave Oven Transformer |
| MOTS | Military Off-The-Shelf |
| MOU | Minutes Of Use |
| MOUSE | Manually Operated User Selection Equipment |
| MOUSE | Mechanically Operated User Signal Engine |
| MOUSE | Move Objects U See Easily |
| MP | Media Platform |
| MP | Middle Position |
| MPE | Memory Parity Error |
| MPFM | Micro-Propulsion Feed Module |
| MPFS | Massive Portable Forensic Storage |
| MPIO | Multi-Path Input/Output |
| MPPH | My Private PHone (Android) |