Name
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International standard or profile
|
European standard or profile
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Other specification
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Description
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| |
ASCII
|
|
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ANSI X3.4-1968
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The basic ASCII character set that uses 7 bits for each character giving it a total of 128 unique symbols (the numbers 0 through 127 to represent all English characters as well as special control characters).
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EBCDIC
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Proprietary standard developed by IBM
|
Abbreviation of Extended Binary-Coded Decimal Interchange Code. EBCDID is an IBM code for representing characters as numbers. Although it is widely used on large IBM computers, most other computers (including PCs and Macintoshes) use ASCII
|
Extended ASCII
|
ISO/IEC 8859-1
|
|
|
Extended ASCII uses 8 bits which gives it an additional 128 characters. The extra characters represent characters from foreign languages and special symbols for drawing pictures.
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ISO 7-bit
|
ISO/IEC 646
|
|
|
The international version of ASCII.
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ISO 8-bit
|
ISO/IEC 4873
|
BS 6006
|
|
International 8-bit code for information interchange.
|
ISO Latin 1
|
ISO/IEC 8859-1
|
|
|
A standard character set developed by the ISO. It is a superset of the ASCII character set. Both the HTTP and HTML protocols used on the World Wide Web are based on ISO Latin-1. This means that to represent non-ASCII characters on a Web page, you need to use the corresponding ISO Latin-1 code.
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Name
|
International standard or profile
|
European standard or profile
|
Other specification
|
Description
|
Character Sets (continued) |
Unicode
|
A subset of ISO 10646
|
|
|
A standard for representing characters as integers. Unlike ASCII, which uses 8 bits for each character, Unicode uses 16 bits, which means that it can represent more than 65,000 unique characters. This is necessary for languages such as Greek, Chinese and Japanese. Many analysts believe that as the software industry becomes increasingly global, Unicode will eventually supplant ASCII as the standard character coding format.
|
Structured Text/Document Interchange Standards |
DSSSL
|
ISO/IEC 10179: 1996
|
|
|
Abbreviation for Document Style Semantics and Specification Language. It is the language used to associate formatting rules with the elements of a structured document encoded using SGML (ie in a fully standardised environment a structured document coded in SGML would have its formatting specifications written in DSSSL)
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FTP
|
|
|
IETF RFC 542; RFC 2389; RFC 2428
|
Abbreviation for File Transfer Protocol, the protocol used on the Internet for sending files.
|
HTML
|
ISO/IEC FCD 15445 (ISO HTML)
|
|
RFC 1866
(HTML 2.0)
|
Short for HyperText Markup Language, the authoring language used to create documents on the World Wide Web. HTML is similar to SGML, although it is not a strict subset.
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