Topics include Web Development, Audio, Video, Graphics, Software and Hardware. See also the Music Glossary.

m
- MAC address
- Macintosh file system
- macro
- MADI
- magnetic storage
- magnetic tape
- magneto optical
- magneto-optical disc
- mag tape
- markup
- masking pattern adapted universal sub-brand integrated coding and multi-plexing
- master
- Mb
- Mbps
- MCI
- MCI driver
- Media Control Interface
- Media Player
- mega-
- megabit
- megabits per second
- megabyte (MB)
- memory
- menu bar
- messaging
- meta-
- metal-oxide semiconductor field-effect transistor
- metatag
- MHz
- microphone cable
- microphone pattern
- Microsoft Disk Operating System
- Microsoft Windows
- microwave
- mic splitter
- MIDI
- MIDI Manufacturers Association
- MIDI mode
- MIDI Show Control
- MIDI system message
- MIDI time code
- milli-
- MIME
- minidisc
- mirror site
- mixed-mode disc
- mixing board
- M-JPEG
- MMA
- MO
- mode
- modem
- modulation
- monitor
- Moore’s law
- morph
- Mosaic
- MOSFET
- motherboard
- motion compensation
- motion-JPEG
- mouse
- MoviePlayer
- Moving Picture Experts Group
- Mozilla
- MP3
- MPEG
- MPEG-1
- MPEG-2
- MPEG-4 part 10
- MPEG compression
- MPEG frame type
- MPEG-H part 2
- MPEG Layer-2 audio
- MPEG Layer-3 audio
- MPEG layers
- MS-DOS
- MTC
- mu
- mu-law (mu-law or micro-law)
- Multichannel Audio Digital Interface
- multimedia
- multimedia platform
- multiplatform
- multiplex
- multiplexer
- Multipurpose Internet Mail Extensions (MIME)
- multitimbral
- multiuser
- Musical Instrument Digital Interface
- MUSICAM
- MUX
- Muzak