- machine vision
- machine-intimate
- Macintosh version
- macro call
- macro data
- macro element
- macro flowchart
- macro programming
- macro-language
- macrodefinition
- macroeconomic
- macrogeneration
- macrogenerator
- macrolibrary
- macrommand
- macroprocessing instruction
- macroroutine
- macroscopic analysis
- macrostatement
- magazine slot
- Magnesium alloy
- magnetic bridge
- magnetic card
- magnetic character
- magnetic compass
- magnetic deviation
- magnetic document
- magnetic encoding
- magnetic field
- magnetic head
- magnetic ink
- magnetic insulation
- magnetic intensity
- magnetic material
- magnetic media
- magnetic memory
- magnetic particle
- magnetic reactance
- magnetic recording
- magnetic reproducer
- magnetic saturation
- magnetic scanning
- magnetic screen
- magnetic sheet
- magnetic spectrum
- magnetic stripe
- magnetic switch
- magnetic track
- magnetic transfer
- magnetics
- magnetization cycle
- magnetohydro dynamics
- magnetomotive force
- magnetoswitchboard exchange
- magnistor
- magnitude
- mail filter
- mail message
- mail path
- mail queue
- mail sorting
- mailbox
- mailing list
- main board
- main menu
- main routine
- main site
- main task
- main tube
- main variable
- mainframe access
- mainframe interactive
- mainline code
- mainstream
- maintenance
- maintenance mode
- maintenance programming
- maintenance release
- major cycle
- major repair
- major tick
- major total
- majorant series
- majority element
- majority logic
- lynx
- lzh
- Macauley duration
- mach
- machine address
- machine cognition
- machine conditions
- machine configuration
- machine cycle
- machine dependency
- machine element
- machine failure
- machine identification
- machine instruction
- machine logic