What is yottabyte
A yottabyte (YB) is a unit of digital information storage that is used to denote the size of data. This equates to a quadrillion gigabytes, 1,000 Zettabytes or 1,000,000,000,000,000,000,000,000 bytes.

The prefix 'Yotta' is part of the International System of Units (SI) and means 1024. Hard drive manufacturers label their products in SI, which can confuse some IT people. The ISO, IEEE and IEC all recommend the use of the unit yobibyte, the 2nd80Bytes means.

Two interpretations can be made with the two standards:
Using SI, one yottabyte is equal to 1000 zettabytes, or 1024Bytes.
With the conventional binary measurement, one yottabyte corresponds to 1,208,925,819,614,629,174,70776 bytes, i.e. 280Bytes, which also corresponds to 1 Yobibyte (YiB).

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