mebibyte
Noun
Meaning
a unit of information equal to 1024 kibibytes or 2^20 (1,048,576) bytes
Source: WordNetSynonyms
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Examples
For example, 1.44 MB 3½-inch HD disks have the "M" prefix peculiar to their context, coming from their capacity of 2,880 512-byte sectors (1,440 KiB), inconsistent with either a decimal megabyte nor a binary mebibyte (MiB).
In 1998 the International Electrotechnical Commission (IEC) proposed standards for binary prefixes requiring the use of megabyte to strictly denote 1000 2 bytes and mebibyte to denote 1024 2 bytes.
In the IEC system, these would be expressed as one "mebibyte" and one "gibibyte," respectively.
The only significant change is the addition of explicit definitions for some quantities. citation In 2009, the prefixes kibi-, mebi-, etc. were defined by ISO 80000-1 in their own right, independently of the kibibyte, mebibyte, and so on.