Yottabyte
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| Quantities of bytes | ||||
|---|---|---|---|---|
| SI prefixes | Binary prefixes (IEC 60027-2) | |||
| Name (Symbol) | Popular Usage | Standard SI | Name (Symbol) | Value |
| kilobyte (kB) | 210 | 103 | kibibyte (KiB) | 210 |
| megabyte (MB) | 220 | 106 | mebibyte (MiB) | 220 |
| gigabyte (GB) | 230 | 109 | gibibyte (GiB) | 230 |
| terabyte (TB) | 240 | 1012 | tebibyte (TiB) | 240 |
| petabyte (PB) | 250 | 1015 | pebibyte (PiB) | 250 |
| exabyte (EB) | 260 | 1018 | exbibyte (EiB) | 260 |
| zettabyte (ZB) | 270 | 1021 | zebibyte (ZiB) | 270 |
| yottabyte (YB) | 280 | 1024 | yobibyte (YiB) | 280 |
A yottabyte (derived from the SI prefix yotta-) is a unit of information or computer storage equal to one septillion (one long scale quadrillion or 1024) bytes. It is commonly abbreviated YB.
Because of irregularities in the definition and usage of terms for byte multiples, the exact number can be either one of the following:
- 1,000,000,000,000,000,000,000,000 bytes — 10008, or 1024.
- 1,208,925,819,614,629,174,706,176 bytes — 10248, or 280.
Because of these irregularities, the term "yobibyte" has been proposed as an unambiguous reference to the latter value. (See binary prefixes.)ru:Йоттабайт ar:يوتابايت es:Yottabyte it:Yottabyte nl:Yottabyte pl:Jottabajt sr:Јотабајт zh:Yottabyte
