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megabyte

 
 
/ˈmegəbaɪt/ noun [C] (abbreviation MB, Mbyte, also informal meg) IT

Definition

a unit used for measuring the amount of information that a computer disk can store, or the size of a computer file: a 512-megabyte USB flash drive Memory comes on 64 meg smart cards.
(Definition of megabyte noun from the Cambridge Business English Dictionary © Cambridge University Press)

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