Code page: Difference between revisions

Revision as of 15:33, 2 January 2024

Revision as of 15:35, 2 January 2024

Line 19:

Most well-known code pages, excluding those for the [[CJK characters|CJK]] languages and [[Vietnamese language|Vietnamese]],<!-- not using CJKV here because this applies to the modern romanised Vietnamese --> fit all their code-points into eight bits and do not involve anything more than mapping each code-point to a single character; furthermore, techniques such as combining characters, complex scripts, etc., are not involved.

The text mode of standard ([[VGA-compatible text mode|VGA-compatible]]) PC graphics hardware is built around using an 8-bit code page, though it is possible to use two at once with some color depth sacrifice, and up to eight may be stored in the [[display adaptoradapter]] for easy switching.<ref name="VGA-Programming"/> There was a selection of third-party code page fonts that could be loaded into such hardware. However, it is now commonplace for operating system vendors to provide their own character encoding and rendering systems that run in a graphics mode and bypass this hardware limitation entirely. However the system of referring to character encodings by a code page number remains applicable, as an efficient alternative to string identifiers such as those specified by the IETF and IANA for use in various protocols such as e-mail and web pages.

=== Relationship to ASCII ===