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The term " megabyte " is commonly used to mean either 1000 < sup > 2 </ sup > bytes or 1024 < sup > 2 </ sup > bytes.
This originated as compromise technical jargon for the byte multiples that needed to be expressed by the powers of 2 but lacked a convenient name.
As 1024 ( 2 < sup > 10 </ sup >) approximates 1000 ( 10 < sup > 3 </ sup >), roughly corresponding SI multiples began to be used for binary multiples.
By the end of 2007, standards and government authorities including IEC, IEEE, EU, and NIST proposed standards for binary prefixes and requiring the use of megabyte to strictly denote 1000 < sup > 2 </ sup > bytes and mebibyte to denote 1024 < sup > 2 </ sup > bytes.
The term remains ambiguous and it can follow any one of the following common definitions:
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