Six-bit character code: Difference between revisions

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Types of six-bit codes: UTF-6 is an iteration on UTF-5, which used base32 ascii data to encode Unicode codepoints. UTF-6 does not involve using six-bit words to encode character data.
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Six-bit codes could encode more than 64 characters by the use of [[Shift Out and Shift In characters]], essentially incorporating two distinct 62-character sets and switching between them. For example, the popular [[IBM 2741]] communications terminal supported a variety of character sets of up to 88 printing characters plus control characters.
 
A [[UTF-6]] encoding was proposed for [[Comparison of Unicode encodings|Unicode]]<ref name="UTF-6">{{cite web |author-last1=Welter |author-first1=Mark |author-last2=Spolarich |author-first2=Brian W. |title=UTF-6 - Yet Another ASCII-Compatible Encoding for ID |url=https://tools.ietf.org/html/draft-ietf-idn-utf6-00 |website=Internet Engineering Task Force |date=2000-11-16 |access-date=2016-04-09 |url-status=live |archive-url=https://web.archive.org/web/20160523174347/https://tools.ietf.org/html/draft-ietf-idn-utf6-00 |archive-date=2016-05-23}}</ref> but was superseded by [[Punycode]].
 
===BCD six-bit code===