Code page: Difference between revisions

Revision as of 11:17, 27 March 2003

Revision as of 11:19, 27 March 2003

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'''Code page''' is the traditional [[IBM]] term used for a specific variant of character coding for [[computer]]s. Although the basis of many character sets is [[ASCII]], ASCII useswas a [[parityseven bit]] thatcode, iswith nothe longer8-bit usedrepresentation of ASCII either setting the top bit to zero or using it as a [[parity bit]]. Using this bit for data doublesdoubled the size of the possible character set, allowing another 128 characters to be added. No standard existsthe existed for these "[[Extended ASCII|extended character sets]]", and IBM referred to the variants as code pages.

Although IBM maintained a myriad of code pages, the term has in general use taken on the meaning character coding for the [[IBM PC]]. Since the original IBM PC code page was not really designed for international use, several incompatible variants emerged:

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* 1252 -- Superset of [[ISO 8859-1]], used by [[Microsoft Windows]]

The IBM PC code pages have now been obsoltedrendered obsolete by international standards, specifically [[ISO 8859-1]] and [[Unicode]].

Other code pages of note are: