Definition of megabyte in English:

megabyte

Syllabification: meg·a·byte
Pronunciation: /ˈmegəˌbīt
 
/
(abbreviation: Mb or MB)

noun

Computing
  • A unit of information equal to 220 bytes or, loosely, one million bytes.
    More example sentences
    • We used to measure data in terms of kilobytes and megabytes; now gigabytes and terabytes are the terms commonly discussed.
    • Here is a quick explanation of bytes, megabytes, and so on, and some estimates of the storage requirements of various sorts of information.
    • The software requires only five megabytes of hard disk space and 16 megabytes of random access memory (Ram).

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