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Difference between revisions of "kibibyte"
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| − | {{title|Kibibyte (KiB)}} | + | {{title|Kibibyte (KiB)}}{{units of digital info|Kibibyte|2<sup>10</sup> Bytes<br>1024 Bytes}} |
| − | A '''kibibyte''' ('''KiB'''), derived from ''[[wikipedia:kilo-|kilo]]-[[binary]]'', is a unit of digital information storage equal to 1024 [[bytes]]. This is in contrast to a [[kilobyte]], meaning 1000 bytes. | + | A '''kibibyte''' ('''KiB'''), derived from ''[[wikipedia:kilo-|kilo]]-[[binary]]-byte'', is a unit of digital information storage equal to 1024 [[bytes]]. This is in contrast to a [[kilobyte]], meaning 1000 bytes. The unit was established by the [[International Electrotechnical Commission]] in [[1998]] to differentiate units in base 10 from units in base 2. IEC formally added it to {{iec|60027-2|IEC 60027-2}} which was later superseded by {{iec|80000-13|IEC 80000-13}}. |
| − | :<math>1 \text{ KiB} = 2^{10} \text{ bytes} = | + | :<math>1 \text{ KiB} = 2^{10} \text{ bytes} = 1\,024 \text{ bytes} = 8\,192 \text{ bits}</math> |
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== Examples == | == Examples == | ||
* A typical [[L1I$]] and [[L1D$]] is between 8 and 64 KiB. For example, [[AMD]]'s {{amd|K5|l=arch}} had 16 KiB L1 instruction cache and 8 KiB data cache. | * A typical [[L1I$]] and [[L1D$]] is between 8 and 64 KiB. For example, [[AMD]]'s {{amd|K5|l=arch}} had 16 KiB L1 instruction cache and 8 KiB data cache. | ||
* A typical [[L2$]] is between 64 and 512 KiB. For example [[Intel]]'s {{intel|Haswell|l=arch}} had 256 KiB of L2 cache. | * A typical [[L2$]] is between 64 and 512 KiB. For example [[Intel]]'s {{intel|Haswell|l=arch}} had 256 KiB of L2 cache. | ||
| − | * A 16-bit CPU cannot directly address more than 64 KiB. | + | * A 16-bit [[CPU]] cannot directly address more than 64 KiB. |
Latest revision as of 01:27, 19 September 2016
| Unit of Digital Information Storage | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Kibibyte | 210 Bytes 1024 Bytes | ||||||||||||||||||||||||||||||||||||||||||||||||||
| SI | IEC | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Decimal | Binary | ||||||||||||||||||||||||||||||||||||||||||||||||||
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| (larger units were proposed but have not yet formally been adopted by the BIPM) | |||||||||||||||||||||||||||||||||||||||||||||||||||
A kibibyte (KiB), derived from kilo-binary-byte, is a unit of digital information storage equal to 1024 bytes. This is in contrast to a kilobyte, meaning 1000 bytes. The unit was established by the International Electrotechnical Commission in 1998 to differentiate units in base 10 from units in base 2. IEC formally added it to IEC 60027-2 which was later superseded by IEC 80000-13.