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{{pp-semi-indef}} {{pp-semi-indef}}
{{Quantities of bytes}} {{Quantities of bytes}}
The '''yottabyte''' (derived from the ] '']'') is a unit of ] or ] equal to one ] (one ] quadrillion or 10<sup>24</sup>) ]s (one quadrillion ]). The '''yottabyte''' (derived from the ] '']'') is a unit of ] or ] equal to one ] (one ] quadrillion or 10<sup>24</sup>) ]s (one quadrillion ]).
The unit symbol for the yottabyte is&nbsp;'''YB'''. The unit symbol for the yottabyte is&nbsp;'''YB'''.


Revision as of 16:45, 15 January 2013

"YB" redirects here. For other uses, see Yb (disambiguation).
Multiple-byte units
Decimal
Value Metric
1000 kB kilobyte
1000 MB megabyte
1000 GB gigabyte
1000 TB terabyte
1000 PB petabyte
1000 EB exabyte
1000 ZB zettabyte
1000 YB yottabyte
1000 RB ronnabyte
1000 QB quettabyte
Binary
Value IEC Memory
1024 KiB kibibyte KB kilobyte
1024 MiB mebibyte MB megabyte
1024 GiB gibibyte GB gigabyte
1024 TiB tebibyte TB terabyte
1024 PiB pebibyte —
1024 EiB exbibyte —
1024 ZiB zebibyte —
1024 YiB yobibyte —
—
—
Orders of magnitude of data

The yottabyte (derived from the SI prefix yotta-) is a unit of information or computer storage equal to one septillion (one long scale quadrillion or 10) bytes (one quadrillion gigabytes). The unit symbol for the yottabyte is YB.

As of 2012, no storage system or network has achieved even one thousandth of a yottabyte (a zettabyte) of information. The combined space of all computer hard drives in the world was estimated at approximately 160 exabytes in 2006, and as of 2009, the Internet was estimated to contain close to 500 exabytes.

When used with byte multiples, the SI prefix indicates a power of 1000:

1000000000000000000000000bytes = 1000 or 10 bytes

The term "yobibyte" (YiB), using a binary prefix, is used for the corresponding power of 1024.

See also

References

  1. John F. Gantz (March 2007). "An IDC White Paper: The Expanding Digital Universe" (PDF). EMC.
  2. Richard Wray (2009-05-18). "Internet data heads for 500bn gigabytes". The Guardian.
Units of information
Platform-independent units
Platform-dependent units
Metric bit units
Metric byte units
Category: