Wikipedia:Reference desk/Archives/Computing/2024 August 23

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August 23

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Lower half of Dos Code pages

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Code page 850 cites both IBM[1][2] and the International Components for Unicode[3] in the header of the table describing the layout of the code page. IBM[1] and the article provide a table where the characters at positions 0x00–0x7F match Code page 437, but International Components for Unicode provides a mapping[3] that instead agrees with ASCII including ASCII control codes. The IBM mapping[2] agrees with the IBM table not the Unicode mapping. Is the situation here something like the whole ISO 8859-1 vs Windows-1252 thing, or is one of the sources just wrong?

Other Wikipedia articles on Dos codepages have similar issues, but some only provide a table for the upper half and state that the lower half is the same as Code page 437. What should the articles say? McYeee (talk) 20:08, 23 August 2024 (UTC)[reply]

References

  1. ^ a b Code Page CPGID 00850 (pdf), IBM, 1986
  2. ^ a b Code Page (CPGID) 00850 (txt), IBM, 1998
  3. ^ a b "International Components for Unicode (ICU), ibm-850_P100-1995.ucm". GitHub. 2002-12-03. Archived from the original on 2022-01-28. Retrieved 2022-01-28.