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| SI decimal prefixes | IEC binary prefixes | |||
| Name (Symbol) |
Standard SI |
Binary usage |
Name (Symbol) |
Value |
| kilobit (kbit) | 103 | 210 | kibibit (Kibit) | 210 |
| megabit (Mbit) | 106 | 220 | mebibit (Mibit) | 220 |
| gigabit (Gbit) | 109 | 230 | gibibit (Gibit) | 230 |
| terabit (Tbit) | 1012 | 240 | tebibit (Tibit) | 240 |
| petabit (Pbit) | 1015 | 250 | pebibit (Pibit) | 250 |
| exabit (Ebit) | 1018 | 260 | exbibit (Eibit) | 260 |
| zettabit (Zbit) | 1021 | 270 | zebibit (Zibit) | 270 |
| yottabit (Ybit) | 1024 | 280 | yobibit (Yibit) | 280 |
| See also: Nibble · Byte · Multiples of bytes Orders of magnitude of data |
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The yobibit (a contraction of yottabinary bit, pronounced YOH-bee-bit) is a standards-based binary multiple (prefix yobi-, symbol Yi-) of the bit, a unit of digital information storage. The yobibyte unit symbol is Yibit or sometimes Yib.
1 yobibit = 280 bits = 1208925819614629174706176bits = 1,024 zebibits
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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