Macintosh Personal Computer (MAC)
Magnetbildaufzeichnung (MAZ)
Magnetische Aufzeichnung (MAZ)
Magneto Optical Disc (MOD)
Mailbox
Mantel
Marktanteil
Media Access Controler (MAC LAN)
Media-Analyse (MA)
Media-Streaming
Medienpädagogik
Medium Earth Orbit (MEO)
Mega Bit pro Sekunde (MBit/s)
Mega Hertz (MHz)
Memorandum of Understanding (MOU)
MemoryCard (MC)
Metal/Oxid/Silizium-Feldeffekttransistor (MOSFET)
Metropolitan Area Network (MAN)
Microsoft - Disk Operating System (MS-DOS)
Mikrozensus
Mini Disc (MD)
Minutenkosten
Mittelwelle (MW)
Mobile Satellite Service (MSS)
Modem
Modulation
Modulator/Demodulator (MODEM)
Most Significant Bit (MSB)
Motion Picture Expert Group (MPEG)
Movie File Format (MOV)
Moving JPEG (M-JPEG)
MPEG1-Audio/Layer3 (MP3)
Multifeed
Multimedia
Multimedia Home Platform (MHP)
Multimedia Message Service (MMS)
Multiplexed Analogous Components (MAC TV)
Multiplexed Channels Per Carrier (MCPC)
Multiplexer
Multipurpose Internet Mail Extensions (MIME)
Musical Instrument Digital Interface (MIDI)