Zettabit
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The zettabit is a multiple of the unit bit for digital information or computer storage. The prefix zetta (symbol Z) is defined in the International System of Units (SI) as a multiplier of 1021 (1 sextillion, short scale),[1] and therefore
- 1 zettabit = 1021bits = 1000000000000000000000bits = 1000 exabits.
The zettabit has the unit symbol Zbit or Zb.
The zettabit is closely related to the zebibit, a unit multiple derived from the binary prefix zebi of the same order of magnitude,[2] which is equal to 270bits = 1180591620717411303424bits, or approximately 18% larger than the zettabit.