Gibibyte

Multiples of bytes
Decimal
Value Metric
1000 kB kilobyte
10002 MB megabyte
10003 GB gigabyte
10004 TB terabyte
10005 PB petabyte
10006 EB exabyte
10007 ZB zettabyte
10008 YB yottabyte
Binary
Value IEC JEDEC
1024 KiB kibibyte KB kilobyte
10242 MiB mebibyte MB megabyte
10243 GiB gibibyte GB gigabyte
10244 TiB tebibyte –
10245 PiB pebibyte –
10246 EiB exbibyte –
10247 ZiB zebibyte –
10248 YiB yobibyte –
Orders of magnitude of data

The gibibyte is a multiple of the unit byte for digital information. It is a member of the set of units with binary prefixes defined by the International Electrotechnical Commission (IEC).[1] Its unit symbol is GiB.

The prefix gibi (symbol Gi) represents multiplication by 10243, therefore:

1 gibibyte = 230 bytes = 1073741824bytes = 1024 mebibytes

The gibibyte is very closely related to the gigabyte (GB). The GB is defined by the IEC as 109 bytes = 1000000000bytes, 1GiB ≈ 1.074GB. 1024 gibibytes are equal to one tebibyte. Gigabyte and GB are customarily used to mean 10243 (230, binary 01000000000000000000000000000000) bytes in the context of computer memory, although not in the context of data transmission and not necessarily in the context of hard drive size.[2] The word gibibyte was coined in 1998.[3]

Binary prefixes are increasingly used in technical literature and open source software, and are a component of the International System of Quantities.[4]

This unit can be used for measuring computer, smartphone and tablet RAM.

See also

References

  1. ↑ "Prefixes for binary multiples". NIST. 2007. Retrieved 10 August 2007.
  2. ↑ "Gigabyte, usage note". American Heritage Dictionary. Retrieved 25 January 2016.
  3. ↑ International Electrotechnical Commission (January 1999), IEC 60027-2 Amendment 2: Letter symbols to be used in electrical technology - Part 2: Telecommunications and electronics.
  4. ↑ "IEC 80000-13:2008". International Organization for Standardization. Retrieved 21 July 2013.
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