# Code page 950

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Windows character set for Traditional Chinese

Code page 950 Code page 950 layout as implemented by Microsoft (top, MS-950 or IBM-1373) and IBM (bottom, IBM-950). Language Traditional Chinese Created by Microsoft Extends Big5 Based on Big5-ETen

**Code page 950** is the [code page](/source/Code_page) used on [Microsoft Windows](/source/Microsoft_Windows) for [Traditional Chinese](/source/Traditional_Chinese). It is Microsoft's implementation of the *[de facto](/source/De_facto)* standard [Big5](/source/Big5) character encoding. The code page is not registered with [IANA](/source/Internet_Assigned_Numbers_Authority),[1] and hence, it is not a standard to communicate information over the internet, although it is usually labelled simply as big5, including by Microsoft library functions.[2]

## Terminology and variants

The major difference between Windows code page 950 and "common" (non-vendor-specific) Big5 is the incorporation of a subset of the [ETEN](/source/ETen_Chinese_System) extensions to Big5 at [0x](/source/Hexadecimal)F9D6 through 0xF9FE (comprising the seven [Chinese characters](/source/Chinese_characters) 碁, 銹, 裏, 墻, 恒, 粧, and 嫺, followed by 34 [box drawing characters and block elements](/source/Box-drawing_character)). The ranges used by some of the other ETEN extended characters are instead defined as [end-user defined (private use) characters](/source/Private_Use_Areas#Private-use_characters_in_other_character_sets).[3]

IBM's [CCSID](/source/CCSID) 950 comprises [single byte](/source/SBCS) **code page 1114** (CCSID 1114) and [double byte](/source/DBCS) **code page 947** (CCSID 947),[4][5][6] and, while also a Big5 variant, is somewhat different from Microsoft's code page 950, incorporating some of the ETEN extensions for lead bytes 0xA3,[7] 0xC6,[3][8] 0xC7[9] and 0xC8,[3][10] while omitting those with lead byte 0xF9 (which Microsoft includes), mapping them instead to the [Private Use Area](/source/Private_Use_Area) as user-defined characters.[3][11] It also includes two non-ETEN extension regions with trail bytes 0x81–A0, i.e. outside the usual Big5 trail byte range but similar to the Big5+ trail byte range: area 5 has lead bytes 0xF2–F9 and contains IBM-selected characters, while area 9 has lead bytes 0x81–8C and is a user-defined region.[12]

Microsoft updated their version of code page 950 in 2000, adding the [euro sign](/source/Euro_sign) (€) at the double-byte code 0xA3E1. IBM refers to the euro sign update of their Big-5 variant as **CCSID 1370** (which includes both single-byte (0x80) and double-byte euro signs).[13] It comprises single byte code page 1114 (CCSID 5210) and double byte code page 947 (CCSID 21427).[13][14][15]

For better compatibility with Microsoft's variant in [IBM Db2](/source/IBM_Db2), IBM also define the pure double-byte **Code page 1372**[16] and associated variable-width **CCSID 1373**, which includes only the double-byte euro sign[17] and matches Microsoft behaviour in which extension regions are included.[18][19][20][21][22]

## Single byte codes

The following are the single-byte graphical characters included by IBM. The codes 0x00 though 0x1F and 0x7F may be used for [C0 control codes](/source/C0_control_codes) instead, depending on context (compare [code page 437](/source/Code_page_437), [code page 897](/source/Code_page_897)). As noted above, the single-byte euro sign at 0x80 is not included in IBM CCSIDs 950 or 1373, nor by Microsoft.

Code page 1114[23][24] 0 1 2 3 4 5 6 7 8 9 A B C D E F 0x ☺ ☻ ♥ ♦ ♣ ♠ • ◘ ○ ◙ ♂ ♀ ♪ ♫ ☼ 1x ► ◄ ↕ ‼ ¶ § ▬ ↨ ↑ ↓ → ← ∟ ↔ ▲ ▼ 2x SP ! " # $ % & ' ( ) * + , - . / 3x 0 1 2 3 4 5 6 7 8 9 : ; < = > ? 4x @ A B C D E F G H I J K L M N O 5x P Q R S T U V W X Y Z [ \ ] ^ _ 6x ` a b c d e f g h i j k l m n o 7x p q r s t u v w x y z { | } ~ ⌂ 8x €

The rest are parts of a double byte sequence.

## Private Use Area usage

Mapping from Big5 EUDC to PUA code points[25] Big5 range Unicode range Formula[26] 81 40–8D FE U+EEB8–U+F6B0 0xeeb8 + (157 * (H-0x81)) + (L<0x80)?(L-0x40):(L-0x62) 8E 40–A0 FE U+E311–U+EEB7 0xe311 + (157 * (H-0x8e)) + (L<0x80)?(L-0x40):(L-0x62) C6 A1–C8 FE U+F6B1–U+F848 0xf672 + (157 * (H-0xc6)) + (L<0x80)?(L-0x40):(L-0x62) FA 40–FE FE U+E000–U+E310 0xe000 + (157 * (H-0xfa)) + (L<0x80)?(L-0x40):(L-0x62)

This mapping is also used in [HKSCS](/source/HKSCS) where a given glyph is not yet found in the Unicode revision specified.[27]

## See also

- [LMBCS-18](/source/LMBCS-18)

- [Code page 951](/source/Code_page_951), a Microsoft hack for replacing cp950 with an HKSCS-enabled version on Windows XP

## References

1. **[^](#cite_ref-1)** ["Character Sets"](https://www.iana.org/assignments/character-sets). *IANA — Protocol Registries*.

1. **[^](#cite_ref-msdnlabels_2-0)** ["Encoding.WindowsCodePage Property - .NET Framework (current version)"](https://msdn.microsoft.com/en-us/library/system.text.encoding.windowscodepage(v=vs.110).aspx). *MSDN*. Microsoft.

1. ^ [***a***](#cite_ref-rfc1922_3-0) [***b***](#cite_ref-rfc1922_3-1) [***c***](#cite_ref-rfc1922_3-2) [***d***](#cite_ref-rfc1922_3-3) Zhu, HF.; Hu, DY.; Wang, ZG.; Kao, TC.; Chang, WCH.; Crispin, M. (1996). ["Chinese Character Encoding for Internet Messages"](https://tools.ietf.org/html/rfc1922). *Requests for Comments*. [IETF](/source/IETF). [doi](/source/Doi_(identifier)):[10.17487/rfc1922](https://doi.org/10.17487%2Frfc1922). RFC 1922.

1. **[^](#cite_ref-ccsid950_4-0)** ["CCSID 950 information document"](https://web.archive.org/web/20141202001630/http://www-01.ibm.com/software/globalization/ccsid/ccsid950.html). Archived from [the original](http://www-01.ibm.com/software/globalization/ccsid/ccsid950.html) on 2014-12-02.

1. **[^](#cite_ref-5)** ["CCSID 1114 information document"](https://web.archive.org/web/20160327100728/http://www-01.ibm.com/software/globalization/ccsid/ccsid1114.html). Archived from [the original](http://www-01.ibm.com/software/globalization/ccsid/ccsid1114.html) on 2016-03-27.

1. **[^](#cite_ref-6)** ["CCSID 947 information document"](https://web.archive.org/web/20141201232116/http://www-01.ibm.com/software/globalization/ccsid/ccsid947.html). Archived from [the original](http://www-01.ibm.com/software/globalization/ccsid/ccsid947.html) on 2014-12-01.

1. **[^](#cite_ref-7)** ["Lead byte A3: ibm-950_P110-1999"](https://demo.icu-project.org/icu-bin/convexp?conv=ibm-950_P110-1999&b=A3&s=ALL#layout). *ICU Demonstration - Converter Explorer*. [International Components for Unicode](/source/International_Components_for_Unicode).

1. **[^](#cite_ref-8)** ["Lead byte C6: ibm-950_P110-1999"](https://demo.icu-project.org/icu-bin/convexp?conv=ibm-950_P110-1999&b=C6&s=ALL#layout). *ICU Demonstration - Converter Explorer*. [International Components for Unicode](/source/International_Components_for_Unicode).

1. **[^](#cite_ref-9)** ["Lead byte C7: ibm-950_P110-1999"](https://demo.icu-project.org/icu-bin/convexp?conv=ibm-950_P110-1999&b=C7&s=ALL#layout). *ICU Demonstration - Converter Explorer*. [International Components for Unicode](/source/International_Components_for_Unicode).

1. **[^](#cite_ref-10)** ["Lead byte C8: ibm-950_P110-1999"](https://demo.icu-project.org/icu-bin/convexp?conv=ibm-950_P110-1999&b=C8&s=ALL#layout). *ICU Demonstration - Converter Explorer*. [International Components for Unicode](/source/International_Components_for_Unicode).

1. **[^](#cite_ref-11)** ["Lead byte F9: ibm-950_P110-1999"](https://demo.icu-project.org/icu-bin/convexp?conv=ibm-950_P110-1999&b=F9&s=ALL#layout). *ICU Demonstration - Converter Explorer*. [International Components for Unicode](/source/International_Components_for_Unicode).

1. **[^](#cite_ref-12)** ["IBM Traditional Chinese Graphic Character Set for IBM BIG-5 Code"](https://public.dhe.ibm.com/as400/products/clientaccess/win32/files/globalization/T_Chinese_big51999.pdf) (PDF). [IBM](/source/IBM). 1999. C-H 3-3220-131 1999-04.

1. ^ [***a***](#cite_ref-ccsid1370_13-0) [***b***](#cite_ref-ccsid1370_13-1) ["CCSID 1370 information document"](https://web.archive.org/web/20160327104212/http://www-01.ibm.com/software/globalization/ccsid/ccsid1370.html). Archived from [the original](http://www-01.ibm.com/software/globalization/ccsid/ccsid1370.html) on 2016-03-27.

1. **[^](#cite_ref-14)** ["CCSID 5210 information document"](https://web.archive.org/web/20141129231704/http://www-01.ibm.com/software/globalization/ccsid/ccsid5210.html). Archived from [the original](http://www-01.ibm.com/software/globalization/ccsid/ccsid5210.html) on 2014-11-29.

1. **[^](#cite_ref-15)** ["CCSID 21427 information document"](https://web.archive.org/web/20160327035914/http://www-01.ibm.com/software/globalization/ccsid/ccsid21427.html). Archived from [the original](http://www-01.ibm.com/software/globalization/ccsid/ccsid21427.html) on 2016-03-27.

1. **[^](#cite_ref-16)** ["CPGID 01372: MS T-Chinese Big-5 (Special for DB2)"](https://web.archive.org/web/20160317015819/http://www-01.ibm.com/software/globalization/cp/cp01372.html). *IBM Globalization - Code page identifiers*. Archived from [the original](http://www-01.ibm.com/software/globalization/cp/cp01372.html) on 2016-03-17.

1. **[^](#cite_ref-17)** ["ibm-1373_P100-2002"](http://icu-project.org/icu-bin/convexp?conv=ibm-1373_P100-2002). *ICU Demonstration - Converter Explorer*. [International Components for Unicode](/source/International_Components_for_Unicode).

1. **[^](#cite_ref-18)** ["Lead byte A3: ibm-1373_P100-2002"](https://demo.icu-project.org/icu-bin/convexp?conv=ibm-1373_P100-2002&b=A3&s=ALL#layout). *ICU Demonstration - Converter Explorer*. [International Components for Unicode](/source/International_Components_for_Unicode).

1. **[^](#cite_ref-19)** ["Lead byte C6: ibm-1373_P100-2002"](https://demo.icu-project.org/icu-bin/convexp?conv=ibm-1373_P100-2002&b=C6&s=ALL#layout). *ICU Demonstration - Converter Explorer*. [International Components for Unicode](/source/International_Components_for_Unicode).

1. **[^](#cite_ref-20)** ["Lead byte C7: ibm-1373_P100-2002"](https://demo.icu-project.org/icu-bin/convexp?conv=ibm-1373_P100-2002&b=C7&s=ALL#layout). *ICU Demonstration - Converter Explorer*. [International Components for Unicode](/source/International_Components_for_Unicode).

1. **[^](#cite_ref-21)** ["Lead byte C8: ibm-1373_P100-2002"](https://demo.icu-project.org/icu-bin/convexp?conv=ibm-1373_P100-2002&b=C8&s=ALL#layout). *ICU Demonstration - Converter Explorer*. [International Components for Unicode](/source/International_Components_for_Unicode).

1. **[^](#cite_ref-22)** ["Lead byte F9: ibm-1373_P100-2002"](https://demo.icu-project.org/icu-bin/convexp?conv=ibm-1373_P100-2002&b=F9&s=ALL#layout). *ICU Demonstration - Converter Explorer*. [International Components for Unicode](/source/International_Components_for_Unicode).

1. **[^](#cite_ref-23)** [*Code Page CPGID 01114 (pdf)*](https://public.dhe.ibm.com/software/globalization/gcoc/attachments/CP01114.pdf) (PDF), IBM

1. **[^](#cite_ref-24)** [*Code Page CPGID 01114 (txt)*](https://public.dhe.ibm.com/software/globalization/gcoc/attachments/CP01114.txt), IBM

1. **[^](#cite_ref-uni-cp950_25-0)** ["Windows Best Fit Chart: CP950"](http://ftp.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WindowsBestFit/bestfit950.txt). unicode.org. Retrieved 13 September 2016.

1. **[^](#cite_ref-26)** ["Big5"](https://kanji-database.sourceforge.net/charcode/big5.html). *Kanji Database*. Retrieved 13 September 2016.

1. **[^](#cite_ref-27)** ["Big5-HKSCS:2008"](http://www.ogcio.gov.hk/en/business/tech_promotion/ccli/terms/doc/hkscs-2008-big5-iso.txt).{{[cite web](https://en.wikipedia.org/wiki/Template:Cite_web)}}: CS1 maint: deprecated archival service ([link](https://en.wikipedia.org/wiki/Category:CS1_maint:_deprecated_archival_service))

## External links

- [Microsoft's Reference for Code Page 950](https://archive.today/20130128151528/http://msdn.microsoft.com/goglobal/cc305155)

- [Mapping of Code Page 950 to Unicode](https://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP950.TXT)

- International Components for Unicode (ICU) mapping files: [windows-950-2000.ucm](https://github.com/unicode-org/icu/blob/master/icu4c/source/data/mappings/windows-950-2000.ucm), [ibm-950_P110-1999.ucm](https://github.com/unicode-org/icu/blob/master/icu4c/source/data/mappings/ibm-950_P110-1999.ucm), [ibm-1373_P100-2002.ucm](https://github.com/unicode-org/icu/blob/master/icu4c/source/data/mappings/ibm-1373_P100-2002.ucm)

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Adapted from the Wikipedia article [Code page 950](https://en.wikipedia.org/wiki/Code_page_950) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Code_page_950?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.