| Abbreviation | Definition |
|---|---|
| MLP | Multi-Level Platform |
| MLS | Multi-Level Security |
| MM | Mass Memory |
| MM | Memory Management |
| MM | Multi-Mode |
| MMC | Maximum Material Condition |
| MMC | Media MIME Console |
| MMC | Motherboard Management Controller |
| MMC | Multimedia Memory Cards |
| MMC | Multi-Memory Controller |
| MMC | Multi-Miniature Capacitor |
| MMI | Multi-Media Interface |
| MMIC | Monolithic Microwave Integrated Circuit |
| MMKT | Memory Module Kit |
| MMTW | Motorised Magnetic Tape Writer |
| MO | Manually Operated |
| MOB | Metal Outlet Box |
| MOBO | MOtherBOard |
| MOPS | Million Operations Per Second |
| MOS | Maintenance Override Switch |