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| Symbol | Definition |
|---|---|
| ≡ | exactly equal |
| ≈ | approximately equal to |
| = | equal to |
| digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |
The yobibit per second is a multiple of the unit bit for Data Transfer Rate. The prefix yobi (symbol Yi) is defined in the International System of Units (SI) as a multiplier of 280, and therefore 1 yobibit per second = 1080 bit per second = 1208925819614629174706176 bit per second. The yobibit per second has the unit symbol Yibit/s.
The zettabyte per second is a multiple of the unit bit for Data Transfer Rate. The prefix zetta (symbol Z) is defined in the International System of Units (SI) as a multiplier of 1.0 × 1021 (1 sextillion, short scale), and therefore 1 zettabyte per second = 1.0 × 1021 byte per second = 1000000000000000000000 byte per second. The zettabyte per second has the unit symbol ZB/s.