Yottabit (Yb)

The yottabit is a multiple of the unit bit for digital information or computer storage. The prefix yotta (symbol Y) is defined in the International System of Units (SI) as a multiplier of 1024 (1 septillion, short scale), and therefore 1 yottabit = 1024 bits = 1000000000000000000000000 bits = 1000 zettabits. The yottabit has the unit symbol Ybit or Yb. The yottabit is closely related to the yobibit, a unit multiple derived from the binary prefix yobi of the same order of magnitude, which is equal to 280 bits = 1208925819614629174706176 bits, or approximately 21% larger than the yottabit.

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