Editing Character encoding (section)

===Code pages===
{{main|Code page}}
"Code page" is a historical name for a coded character set.

Originally, a code page referred to a specific [[page number]] in the IBM standard character set manual, which would define a particular character encoding.<ref name="DEC_VT510">{{cite web |title=VT510 Video Terminal Programmer Information |at=7.1. Character Sets - Overview |publisher=[[Digital Equipment Corporation]] (DEC) |url=http://www.vt100.net/docs/vt510-rm/chapter7.html#S7.1 |access-date=2017-02-15 |quote=In addition to traditional [[Digital Equipment Corporation|DEC]] and [[ISO]] character sets, which conform to the structure and rules of [[ISO 2022]], the [[VT510]] supports a number of IBM PC code pages ([[page number]]s in IBM's standard character set manual) in [[PCTerm]] mode to emulate the [[console terminal]] of industry-standard PCs. |archive-date=2016-01-26  |archive-url=https://web.archive.org/web/20160126192029/http://www.vt100.net/docs/vt510-rm/chapter7.html#S7.1 |url-status=live }}</ref> Other vendors, including [[Microsoft]], [[SAP AG|SAP]], and [[Oracle Corporation]], also published their own sets of code pages; the most well-known code page suites are "[[Windows code page|Windows]]" (based on Windows-1252) and "IBM"/"DOS" (based on [[code page 437]]).

Despite no longer referring to specific page numbers in a standard, many character encodings are still referred to by their code page number; likewise, the term "code page" is often still used to refer to character encodings in general.

The term "code page" is not used in Unix or Linux, where "charmap" is preferred, usually in the larger context of locales. IBM's Character Data Representation Architecture (CDRA) designates entities with coded character set identifiers ([[CCSID]]s), each of which is variously called a "charset", "character set", "code page", or "CHARMAP".<ref name=utr17/>