| A | B |
|---|
| Kb | Kilobit |
| KB | Kilobyte or Knowledge Base |
| KVM | Kernel_based Virtual Machine |
| LAN | Local Area Network |
| LBA | Logical Block Addressing |
| LC | Lucent Connector |
| LCD | Liquid Crystal Display |
| LDAP | Lightweight Directory Access Protocol |
| LED | Light Emitting Diode |
| LGA | Land Grid Array |
| LI-ON | Lithium-Ion |
| LPD/LPR | Line Printer Daemon or Line Printer Remote |
| LPT | Line Printer Terminal |
| LVD | Low Voltage Differential |
| LVDS | Low Voltage Differential Signaling |
| MAC | Media Access Control or Mandatory Access Control |
| MAN | Metropolitan Area Network |
| MAPI | Messaging Application Programming Interface |
| MAU | Media Access Unit or Media Attachment Unit |
| mATX | Micro Advantage Technology Extended |
| Mb | Megabit |
| MB | Megabyte |
| MBR | Master Boot Record |
| MBSA | Microsoft Baseline Security Analyzer |
| MDM | Master Data Management |
| MFA | Multi-Factor Authentication |
| MFD | Multi-Function Device |
| MFP | Multi-Function Product |
| MHz | Megahertz |
| MicroDIMM | Micro Dual Inline Memory Module |
| MIDI | Musical Instrument Digital Interface |
| MIME | Multipurpose Internet Mail Extension |
| MIMO | Multiple Input Multiple Output |
| MMC | Microsoft Management Console |
| MP3 | Moving Picture Experts Group Layer 3 Audio |
| MP4 | Moving Picture Experts Group Layer 4 |
| MPEG | Moving Picture Experts Group |
| MSCONFIG | Microsoft Configuration |
| MSDS | Material Safety Data Sheet |
| MT-RJ | Mechanical Transfer Registered Jack |
| MUI | Multilingual User Interface |
| NAC | Network Access Control |
| NAS | Network-Attached Storage |
| NAT | Network Address Translation |
| NetBIOS | Networked Basic Input/Output System |
| NetBEUI | Networked Basic Input/Output System Extended User Interface |
| NFC | Near Field Communication |
| NFS | Network File System |
| NIC | Network Interface Card |
| NiCd | Nickel Cadmium |
