Mebibyte
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| Multiples of bytes | ||||||
|---|---|---|---|---|---|---|
| SI prefix | Binary prefixes | |||||
| Name | Symbol | Multiple | Name | Symbol | Multiple | |
| kilobyte | kB | 103 (or 210) | kibibyte | KiB | 210 | |
| megabyte | MB | 106 (or 220) | mebibyte | MiB | 220 | |
| gigabyte | GB | 109 (or 230) | gibibyte | GiB | 230 | |
| terabyte | TB | 1012 (or 240) | tebibyte | TiB | 240 | |
| petabyte | PB | 1015 (or 250) | pebibyte | PiB | 250 | |
| exabyte | EB | 1018 (or 260) | exbibyte | EiB | 260 | |
| zettabyte | ZB | 1021 (or 270) | ||||
| yottabyte | YB | 1024 (or 280) | ||||
Defined by the International Electrotechnical Commission (IEC) in December 1998, a mebibyte (MiB) is a unit of information or computer storage. It is defined as
- 1 MiB = 220 bytes = 1 048 576 bytes
Use of mebibyte and related units is strongly endorsed by IEEE and CIPM and is slowly coming into common usage.
One mebibyte equals 1024 (= 210) kibibytes, and 1024 mebibytes equal one gibibyte.
Mibibyte is a common misspelling, presumably from the 'i' in the abbreviation. The 'i' is actually from the end of the prefix. Tebi- and pebi- are similarly abbreviated Ti- and Pi-, but they are not usually misspelled, as storage sizes (and corresponding terms) currently are only this large in specialized situations.
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