| Abbreviation | Definition |
|---|---|
| LSD | Left Side Drive |
| LSO | Large Send Offload |
| LTDA | Licensed Taxi Drivers Association |
| LU | Logical Unit |
| LUN | Logical Unit Number |
| LUT | Look-Up Table |
| MADT | Multiple Apic Description Table |
| MBE | Memory Block Entry |
| MBP | Memory Block Page |
| MCCS | Monitor Control Command Set |
| MCI | Multimedia Control Interface |
| MCX | Media Center Extender |
| MD4 | Message Direct 4 |
| MDF | Microsoft Meta-Data Framework |
| MDK | Modem Developers Kit |
| ME | Windows Millennium Edition |
| MF | Multi-Function |
| MIMO | Multiple-Input, Multiple-Output |
| MINDS | MS-DOS Internal Network Drive Scheme |
| MMC | Multi-Media Card |