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{{Short description|Sets of characters used in the 1980s & 90s}}
'''Windows code pages''' are sets of characters or [[code pages]] (known as [[character encoding]]s in other operating systems) used in [[Microsoft Windows]] from the 1980s and 1990s. Windows code pages were gradually superseded when [[Unicode in Microsoft Windows|Unicode was implemented in Windows]],{{cn|date=October 2020}} although they are still supported both within Windows and other platforms, and still apply when [[Alt code]] shortcuts are used.
Current Windows versions support [[Unicode]], new Windows applications should use Unicode (UTF-8) and not 8-bit character encodings.<ref>{{cite web |url=https://learn.microsoft.com/en-us/windows/win32/intl/unicode-and-character-sets |title=Unicode and character sets |publisher=Microsoft |date=2023-06-13 |access-date=2024-05-27}}</ref>
There are two groups of system code pages in Windows systems: OEM and Windows-native ("ANSI") code pages.
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|extends=[[ASCII]]
|prev=[[ISO 8859]]
|next=[[Unicode]]<br
|otherrelated=
}}
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|quote=The term "ANSI" as used to signify Windows code pages is a historical reference, but is nowadays a misnomer that continues to persist in the Windows community. The source of this comes from the fact that the Windows code page 1252 was originally based on an ANSI draft—which became International Organization for Standardization (ISO) Standard 8859-1. “ANSI applications” are usually a reference to non-Unicode or code page–based applications.}}</ref>) are used for native non-Unicode (say, [[byte oriented]]) applications using a [[graphical user interface]] on Windows systems. The term "ANSI" is a misnomer because these Windows code pages do not comply with any [[American National Standards Institute|ANSI (American National Standards Institute)]] standard; [[Code Page 1252|code page 1252]] was based on an early ANSI draft that became the international standard [[ISO 8859-1]],<ref name="ms glossary" /> which adds a further 32 control codes and space for 96 printable characters. Among other differences, Windows code-pages allocate printable characters to the supplementary control code space, making them at best illegible to standards-compliant operating systems.)
Most [[Legacy system|legacy]] "ANSI" code pages have code page numbers in the pattern 125x. However, [[windows-874|874]] (Thai) and the East Asian multi-byte "ANSI" code pages ([[Windows-31J|932]], [[windows-936|936]], [[Unified Hangul Code|949]], [[Code page 950|950]]), all of which are also used as OEM code pages, are numbered to match IBM encodings, none of which are identical to the Windows encodings (although most are similar). While [[windows-1258|code page 1258]] is also used as an OEM code page, it is original to Microsoft rather than an extension to an existing encoding. IBM have assigned their own, different numbers for Microsoft's variants, these are given for reference in the lists below where applicable.
All of the 125x Windows code pages, as well as 874 and 936, are labelled by [[Internet Assigned Numbers Authority]] (IANA) as "Windows-''number''", although "Windows-936" is treated as a synonym for "[[GBK (character encoding)|GBK]]". Windows code page 932 is instead labelled as "Windows-31J".<ref>{{Cite web
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== History ==
Since the late 1990s, software and systems have adopted [[Unicode]] as their preferred
|archive-date=19 April 2021▼
=== UTF-8, UTF-16 ===
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* {{anchor|CP437}}[[Code page 437|437]] – IBM PC US, 8-bit [[SBCS]] [[extended ASCII]].<ref name="IBM_CP437">{{cite web|author=IBM|title=SBCS code page information document - CPGID 00437|url=http://www-01.ibm.com/software/globalization/cp/cp00437.html|access-date=2014-07-04|archive-date=2016-06-09|archive-url=https://web.archive.org/web/20160609084933/https://www-01.ibm.com/software/globalization/cp/cp00437.html|url-status=live}}</ref> Known as OEM-US, the encoding of the primary built-in font of VGA graphics cards.<!-- Windows 7 Ultimate --><!-- [[Windows 1.0|1.00]]-[[Windows ME|4.90]] -->
* [[Code page 708|708]] – Arabic, extended [[ISO 8859-6]] (ASMO 708)<!-- Windows 7 Ultimate -->
*
* [[Code page 737|737]] – "MS-DOS Greek". Retains all box drawing characters. More popular than 869.<!-- Windows 7 Ultimate -->
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* [[Code page 850|850]] – "MS-DOS Latin 1". Full (re-arranged) repertoire of [[ISO 8859-1]].<!-- Windows 7 Ultimate -->
* [[Code page 852|852]] – "MS-DOS Latin 2"<!-- Windows 7 Ultimate -->
*
*
* [[Code page 858|858]] – Western European with euro sign<!-- Windows 7 Ultimate -->
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* [[Code page 861|861]] – "MS-DOS Icelandic"<!-- Windows 7 Ultimate -->
* [[Code page 862|862]] – "MS-DOS Hebrew"<!-- Windows 7 Ultimate -->
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|first=Alexandre
|last=Julliard
|publisher=[[Wine (software)|Wine Project]]
|access-date=2021-03-14
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|[[Code page 20423|20423]]||423||EBCDIC Greek with Extended Latin<!-- Windows 7 Ultimate -->
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|[[Code page 20424|20424]]||
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|[[Code page 20833|20833]]||833||Korean EBCDIC for N-Byte Hangul; {{code|x-EBCDIC-KoreanExtended}}<!-- Windows 7 Ultimate -->
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|[[Code page 20838|20838]]||838||EBCDIC Thai<!-- Windows 7 Ultimate -->
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* The use of code pages limits the set of characters that may be used.
* Characters expressed in an unsupported code page may be converted to question marks (?) or other [[replacement character]]s, or to a simpler version (such as removing accents from a letter). In either case, the original character may be lost.
==References==
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