This list provides an inventory of character coding standards mainly before modern standards like
ISO/IEC 646
ISO/IEC 646 is a set of International Organization for Standardization, ISO/International Electrotechnical Commission, IEC standards, described as ''Information technology — ISO 7-bit coded character set for information interchange' ...
etc. Some of these standards have been deeply involved in historic events that still have consequences. One notable example of this is the
ITA2
The Baudot code is an early character encoding for telegraphy invented by Émile Baudot in the 1870s. It was the predecessor to the International Telegraph Alphabet No. 2 (ITA2), the most common teleprinter code in use until the advent of ASCII ...
coding used during World War II (1939–1945). The nature of these standards is not as common knowledge like it is for
ASCII
ASCII ( ), abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices. Because ...
or
EBCDIC
Extended Binary Coded Decimal Interchange Code (EBCDIC; ) is an eight- bit character encoding used mainly on IBM mainframe and IBM midrange computer operating systems. It descended from the code used with punched cards and the corresponding ...
or their slang names. While 8-bit is the de facto standard as of 2016, in the past 5-bit and 6-bit were more prevalent or their multiple.
See also
*
ANSEL
ANSEL, the American National Standard for Extended Latin Alphabet Coded Character Set for Bibliographic Use, was a character set used in text encoding. It provided a table of coded values for the representation of characters of the extended Latin ...
*
SBCS
SBCS, or Single Byte Character Set, is used to refer to character encodings that use exactly one byte for each graphic character. An SBCS can accommodate a maximum of 256 symbols, and is useful for scripts that do not have many symbols or accented ...
(single-byte character set)
*
DBCS
A double-byte character set (DBCS) is a character encoding in which either all characters (including control characters) are encoded in two bytes, or merely every graphic character not representable by an accompanying single-byte character set ...
(double-byte character set)
*
TBCS (triple-byte character set)
*
ITU T.61
*
DEC Radix-50
RADIX 50 or RAD50 (also referred to as RADIX50, RADIX-50 or RAD-50), is an uppercase-only character encoding created by Digital Equipment Corporation (DEC) for use on their DECsystem, PDP, and VAX computers.
RADIX 50's 40-character r ...
*
Cork encoding
The Cork (also known as T1 or EC) encoding is a character encoding used for encoding glyphs in fonts. It is named after the city of Cork in Ireland, where during a TeX Users Group (TUG) conference in 1990 a new encoding was introduced for LaTeX. I ...
*
Prosigns for Morse code
Procedural signs or prosigns are shorthand signals used in Morse code radio telegraphy procedure, for the purpose of simplifying and standardizing radio communication protocol. They are separate from Morse code abbreviations, which consist mainly ...
*
Telegraph code
A telegraph code is one of the character encodings used to transmit information by telegraphy. Morse code is the best-known such code. ''Telegraphy'' usually refers to the electrical telegraph, but telegraph systems using the optical telegraph w ...
*
TV Typewriter
The TV Typewriter is a video terminal that could display two pages of 16 lines of 32 upper case characters on a standard television set. The design, by Don Lancaster, appeared on the cover of '' Radio-Electronics'' magazine in September 1973.
Th ...
*
SI 960
The Israeli Standards Institute's Standard SI 960 defines a 7-bit Hebrew code page. It is derived from, but does not conform to, ISO/IEC 646; more specifically, it follows ASCII except for the lowercase letters and backtick (`), which are repla ...
(7-bit Hebrew ISO/IEC 646)
*
Figure space
A figure space or numeric space is a typographic unit equal to the size of a single numerical digit. Its size can fluctuate somewhat depending on which font is being used. This is the preferred space to use in numbers. It has the same width as a d ...
(typographic unit equal to the size of a single typographic figure)
*
Six-bit character code
A six-bit character code is a character encoding designed for use on computers with word lengths a multiple of 6. Six bits can only encode 64 distinct characters, so these codes generally include only the upper-case letters, the numerals, some punc ...
*
List of binary codes This is a list of some binary codes that are (or have been) used to represent text as a sequence of binary digits "0" and "1". Fixed-width binary codes use a set number of bits to represent each character in the text, while in variable-width binary ...
References
{{Reflist, refs=
[{{cite web , title=BruXy: Radio Teletype communication , date=2005-10-10 , access-date=2016-05-09 , url=http://bruxy.regnet.cz/web/hamradio/EN/radio-teletype-communication/ , quote=The transmitted code use International Telegraph Alphabet No. 2 (ITA-2) which was introduced by CCITT in 1924.]
[{{Cite web , title=Enhanced Broadcast Solution – Interface Specification Final Version , publisher=]Deutsche Börse
Deutsche Börse AG () or the Deutsche Börse Group, is a German company offering marketplace organizing for the trading of shares and other securities. It is also a transaction services provider. It gives companies and investors access to gl ...
, date=2010-05-17 , url=https://www9.deutsche-boerse.com/INTERNET/XETRA/x4_member.nsf/0/4502210270B32DA8C1257600005247F5/$FILE/MUI11010_EnBS_FinalVersion.pdf/MUI11010_EnBS_FinalVersion.pdf?OpenElement , access-date=2011-08-10
[{{cite book , title=Coded Character Sets, History and Development , work=The Systems Programming Series , author-last=Mackenzie , author-first=Charles E. , year=1980 , edition=1 , publisher=]Addison-Wesley Publishing Company, Inc.
Addison-Wesley is an American publisher of textbooks and computer literature. It is an imprint of Pearson PLC, a global publishing and education company. In addition to publishing books, Addison-Wesley also distributes its technical titles throu ...
, isbn=0-201-14460-3 , lccn=77-90165}
/ref>
[{{cite web , title=American Standard Code for Information Interchange, ASA X3.4-1963 , publisher= American Standards Association (ASA) , date=1963-06-17 , url=http://worldpowersystems.com/archives/codes/X3.4-1963/index.html , access-date=2014-05-23 , url-status=dead , archive-url=https://web.archive.org/web/20160526195837/http://worldpowersystems.com/archives/codes/X3.4-1963/index.html , archive-date=2016-05-26 ]
[{{cite journal , title=USA Standard Code for Information Interchange, USAS X3.4-1967 , publisher=]United States of America Standards Institute
The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organ ...
(USASI) , date=July 7, 1967
[{{cite web , title=US and International standards: ASCII , url=http://homepages.cwi.nl/~dik/english/codes/stand.html#ascii , author-first=Dik T. , author=Winter , date=2010 , orig-year=2003 , url-status=dead , archive-url=https://web.archive.org/web/20100116001012/http://homepages.cwi.nl/~dik/english/codes/stand.html#ascii , archive-date=2010-01-16]
[{{cite web , title=7-bit character sets: Revisions of ASCII , author-first=Tuomas , author-last=Salste , publisher=Aivosto Oy , date=January 2016 , id={{URN, nbn, fi-fe201201011004 , url=http://www.aivosto.com/vbtips/charsets-7bit.html#body , access-date=2016-06-13 , url-status=live , archive-url=https://web.archive.org/web/20160613145224/http://www.aivosto.com/vbtips/charsets-7bit.html#body , archive-date=2016-06-13]
External links
circuitousroot.com: Codes that Don't Count
Character sets
Presentation layer protocols