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| SI decimal prefixes | IEC binary prefixes | |||
| Name (Symbol) |
Standard SI |
Binary usage |
Name (Symbol) |
Value |
| kilobyte (kB) | 103 | 210 | kibibyte (KiB) | 210 |
| megabyte (MB) | 106 | 220 | mebibyte (MiB) | 220 |
| gigabyte (GB) | 109 | 230 | gibibyte (GiB) | 230 |
| terabyte (TB) | 1012 | 240 | tebibyte (TiB) | 240 |
| petabyte (PB) | 1015 | 250 | pebibyte (PiB) | 250 |
| exabyte (EB) | 1018 | 260 | exbibyte (EiB) | 260 |
| zettabyte (ZB) | 1021 | 270 | zebibyte (ZiB) | 270 |
| yottabyte (YB) | 1024 | 280 | yobibyte (YiB) | 280 |
| See also: Multiples of bits · Orders of magnitude of data | ||||
The yobibyte (a contraction of yottabinary byte, pronounced YOH-bee-byte) is a standards-based binary multiple (prefix yobi-, symbol Yi-) of the byte, a unit of digital information storage. The yobibyte unit symbol is YiB.
1 yobibyte = 280 bytes = 1208925819614629174706176bytes = 1,024 zebibytes
The yobibyte is closely related to the yottabyte, which is defined as 1024 bytes = 1000000000000000000000000bytes (see binary prefix).
The zebi and yobi prefixes were originally not part of the system of binary prefixes, but were added by the International Electrotechnical Commission in August 2005.[1]
See also
References
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