- machine object
- machine operator
- machine program
- machine time
- machine translation
- machine word
- machine-independent
- macro
- macro declaration
- macro definition
- macro expansion
- macro expression
- macro generation
- macro prototype
- macro-assembler
- macrocall
- macrogenerating program
- macroinstruction
- macrolanguage
- macroparameter
- macroprogram
- macrorecorder
- macroscopic
- magazine article
- magic number
- magnetic cell
- magnetic cycle
- magnetic deflection
- magnetic domain
- magnetic interrupter
- magnetic recorder
- magnetic rectifier
- magnetic reproducing
- magnetic triode
- magnetism
- magnification ratio
- mail handler
- mail program
- mail server
- mailing label
- main beam
- main body
- main dictionary
- main memory
- main segment
- main storage
- maintenance charges
- maintenance contract
- maintenance engineer
- major
- major arc
- major intervals
- major term
- majordomo
- majority carrier
- majorizing region
- male thread
- manipulation detection
- manipulation rate
- magnetic line
- magnetic master
- magnetic medium
- magnetic modulator
- magnetic printing
- magnetic reader
- magnetic separator
- magnetic storage
- magnetic wand
- magnetizing head
- magnetographic printer
- magnification constant
- mail address
- mail bomb
- mail folder
- mail merge
- mail messages
- mail package
- mailing address
- main console
- main directory
- main force
- main function
- main loop
- main-entry
- mainline
- maintenance bit
- maintenance panel
- maintenance services
- major components
- major mechanism
- major release
- majority emitter
- majority game
- majority operation
- majorize
- make
- make contact
- making efficient
- malleability