Template:Bit and byte prefixes: Difference between revisions

From Wikipedia, the free encyclopedia
Content deleted Content added
Correct typo, "bits of bytes" to "bits or bytes"
Fix wording to make it clear that a kilobyte meaning 2^10 is what has been declared "unacceptable" Source https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-4-two-classes-si-units-and-si-prefixes
Line 95: Line 95:
|}
|}
|-
|-
| colspan="2" style="text-align: left"|Note: in information technology, especially for measurements of memory capacity in bits or bytes, it is still common to use the decimal prefixes "kilo" (with symbol "k" or "K"), "mega" ("M"), "giga" ("G"), etc, to mean the closest binary prefixes "kibi", "mebi", etc. This use is now deprecated by major standards bodies such as the [[NIST]] and the [[BIPM]].
| colspan="2" style="text-align: left"|Note: in information technology, especially for measurements of memory capacity in bits or bytes, it used to be common to use the decimal prefixes "kilo" (with symbol "k" or "K"), "mega" ("M"), "giga" ("G"), etc, to mean the closest binary prefixes "kibi", "mebi", etc; this use has been declared unacceptable by major standards bodies such as the [[NIST]] and the [[BIPM]].<!-- e.g. https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-4-two-classes-si-units-and-si-prefixes (Sep 2023) Note: Alternative definitions of the SI prefixes and their symbols are not permitted. For example, it is unacceptable to use kilo (k) to represent 210 = 1024 ... -->
|-
|-
| colspan=2 | {{navbar|Template:Bit and byte prefixes|mini=1|style=margin-right:0;width:auto;float:right;}}
| colspan=2 | {{navbar|Template:Bit and byte prefixes|mini=1|style=margin-right:0;width:auto;float:right;}}

Revision as of 17:23, 28 December 2023

Prefixes for decimal and binary multiples
Decimal
Value SI
1000 103 k kilo
10002 106 M mega
10003 109 G giga
10004 1012 T tera
10005 1015 P peta
10006 1018 E exa
10007 1021 Z zetta
10008 1024 Y yotta
10009 1027 R ronna
100010 1030 Q quetta
Binary
Value IEC
1024 210 Ki kibi
10242 220 Mi mebi
10243 230 Gi gibi
10244 240 Ti tebi
10245 250 Pi pebi
10246 260 Ei exbi
10247 270 Zi zebi
10248 280 Yi yobi
Note: in information technology, especially for measurements of memory capacity in bits or bytes, it used to be common to use the decimal prefixes "kilo" (with symbol "k" or "K"), "mega" ("M"), "giga" ("G"), etc, to mean the closest binary prefixes "kibi", "mebi", etc; this use has been declared unacceptable by major standards bodies such as the NIST and the BIPM.