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Definition of megabyte noun from the Oxford Advanced Learner's Dictionary

megabyte

noun
 
/ˈmeɡəbaɪt/
 
/ˈmeɡəbaɪt/
(also informal meg)
(abbreviation MB)
(computing)
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  1. a unit of computer memory or data, equal to 10 6, or 1 000 2, (= 1 000 000) bytes
    • a 512-megabyte flash drive
  2. (also mebibyte)
     a unit of computer memory or data, equal to 2 20, or 1 024 2, (= 1 048 576) bytesTopics Computersc1
See megabyte in the Oxford Advanced American Dictionary
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