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Everything about Code page 866
Computer character set for Russian
Code page 866 is a code page used under DOS and OS/2 in Russia to write Cyrillic script. It is based on the "alternative code page" developed in 1984 in IHNA AS USSR and published in 1986 by a research group at the Academy of Science of the USSR. The code page was widely used during the DOS era because it preserves all of the pseudographic symbols of code page 437 and maintains alphabetic order of Cyrillic letters. Initially this encoding was only available in the Russian version of MS-DOS 4.01 (1990), but with MS-DOS 6.22 it became available in any language version. Wikipedia →
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- Read the overview: Code page 866A 5-minute orientation
- Pick up a classic book: BibleThe most-reprinted book on the subject
- Go sideways: Code page 850A closely related topic
- Go sideways: KOI character encodingsA closely related topic
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📚 Books worth reading
BibleBible · 1200
The history of Detroit and MichiganSilas Farmer · 1884
A TOUR OF THE WORLDMalik Mansab Khan, Muhammad Rafique Abdul Aziz · 2025
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🔗 Related topics
- Code page 850 Code page 850 (CCSID 850) (also known as CP 850, IBM 00850, OEM 850, DOS Latin 1) is a code page used under DOS operating systems in Western Europe. Depending…
- KOI character encodings KOI (Russian: КОИ, from код обмена информацией, kod obmena informatsiey, 'code for information exchange') is a family of several code pages for the Cyrillic…
- KOI8-R KOI8-R (RFC 1489) is an 8-bit character encoding derived from the KOI-8 encoding, created by the programmer Andrei Chernov in 1993. It was designed to…
- Mac OS Cyrillic encoding Mac OS Cyrillic is a character encoding used on Apple Macintosh computers to represent texts in the Cyrillic script. The original version lacked the letter…
- KOI8-RU KOI8-RU is an 8-bit character encoding, designed to cover Russian, Ukrainian, and Belarusian which use a Cyrillic alphabet. It is closely related to KOI8-R…
- Mac OS Central European encoding Mac OS Central European is a character encoding used on Apple Macintosh computers to represent texts in Central European and Southeastern European languages…
- Windows-1251 Windows-1251 is an 8-bit character encoding, designed to cover languages that use the Cyrillic script such as Russian, Ukrainian, Belarusian, Bulgarian…
- ISO/IEC 8859-5 ISO/IEC 8859-5:1999, Information technology — 8-bit single-byte coded graphic character sets — Part 5: Latin/Cyrillic alphabet, is part of the ISO/IEC…