ASMO 708 was devised by the now defunct Arab Standardization and Metrology Organization7 in 1986 to be the 8-bit standard to be used in Arabic-speaking countries. The design of this character set was inspired by the previous 7-bit standard — ASMO 449 — but it is not simply the 7-bit character set moved to the upper part; there are some differences.
ASMO 708 is a bidirectional character set. The lower part of the character set differs from standard ISO 646 in the digits and in some punctuation. Depending on the context (whether the numbers are within Latin script or Arabic script), the digits are rendered either as Latin digits or Arabic digits. Also, depending on the context, symmetrical punctuation marks are reversed, i.e., whenever there is an opening punctuation mark, the shape is rendered differently according to the direction of the script.
The upper part of the character set has only the Arabic letters, Arabic punctuation that is different from Latin punctuation, plus few other characters.
ASMO 708 was designed in close cooperation8 with ECMA, which adopted it as its own ECMA-114 standard in 1986. It was also approved as an ISO standard as ISO 8859-6.9 It was also registered in the International Register of Coded Character Sets as IR 12710 in 1986.
Some other character sets are related to ASMO 708:
Code values 0xEB–0xF2 are assigned to combining characters.
"Code page 1089 information document". Archived from the original on 2016-03-17. https://web.archive.org/web/20160317053319/http://www-01.ibm.com/software/globalization/cp/cp01089.html ↩
"CCSID 1089 information document". Archived from the original on 2016-03-27. https://web.archive.org/web/20160327025730/http://www-01.ibm.com/software/globalization/ccsid/ccsid1089.html ↩
"The Unicode Standard v15.0 Chapter 9" (PDF). https://www.unicode.org/versions/Unicode15.0.0/ch09.pdf ↩
Computing and the Qurʾān - Some caveats, 2007, Thomas Milo ↩
"Usage Statistics of ISO-8859-6 for Websites, October 2022". w3techs.com. Retrieved 2022-10-25. https://w3techs.com/technologies/details/en-iso885906/all/all ↩
"Frequently Asked Questions". https://w3techs.com/faq ↩
Le codage informatique de l'écriture arabe : d'ASMO 449 à Unicode et ISO/CEI 10646 http://dn.revuesonline.com/gratuit/DN6_3-4_06_Zghibi.pdf ↩
Standard ECMA-114 https://www.ecma-international.org/publications/standards/Ecma-114.htm ↩
"ISO/IEC 8859-6:1999". International Organization for Standardization. Retrieved 2024-09-21. https://www.iso.org/standard/28250.html ↩
European Computer Manufacturers Association, Arabic Organization for Standardization and Metrology (1986-11-30). Right-Hand Part of Latin/Arabic Alphabet (PDF). ITSCJ/IPSJ. ISO-IR-127. /wiki/Ecma_International ↩
Printronix ACA Emulation Programmer's Reference Manual http://printronix.com/emea/wp-content/uploads/manuals/PTX_PRM_ACA_P8_258187a.pdf ↩
European Computer Manufacturers Association (1992-07-12). Arabic/French/German Set (PDF). ITSCJ/IPSJ. ISO-IR-167. https://itscj.ipsj.or.jp/ir/167.pdf ↩
"ISO 8859-6:1999 to Unicode". 1999-07-27. https://www.unicode.org/Public/MAPPINGS/ISO8859/8859-6.TXT ↩
Code Page CPGID 01089 (pdf) (PDF), IBM https://public.dhe.ibm.com/software/globalization/gcoc/attachments/CP01089.pdf ↩
Code Page CPGID 01089 (txt), IBM https://public.dhe.ibm.com/software/globalization/gcoc/attachments/CP01089.txt ↩
International Components for Unicode (ICU), ibm-1089_P100-1995.ucm, 2002-12-03 https://github.com/unicode-org/icu/blob/master/icu4c/source/data/mappings/ibm-1089_P100-1995.ucm ↩