DKOI
EBCDIC encodings for Cyrillic
DKOI (Russian: ДКОИ, Двоичный Код Обработки Информации, "Binary Code for Information Processing") is an EBCDIC encoding for Russian Cyrillic. It is a Telegraphy-based encoding used in ES EVM mainframes. It has been defined by several standards: GOST 19768-74 / ST SEV 358–76, ST SEV 358-88 / GOST 19768–93, CSN 36 9103.
DKOI K1
In DKOI K1 (ДКОИ К1), each Cyrillic letter is given its own code point. Characters are shown with their equivalent Unicode codes. The dollar sign $ may be placed in code point 0x5B; in that case the currency sign ¤ is in code point 0xE1.
DKOI K2
In DKOI K2 (ДКОИ К2), some Cyrillic letters (А, В, Е, К, М, Н, О, Р, С, Т, Х, а, е, о, р, с, у, х) are merged with visually identical Latin letters (A, B, E, K, M, H, O, P, C, T, X, a, e, o, p, c, y, x). Code points 0x5F and 0xA1 are negation ¬ and overline ‾ instead of ^ and ~. The dollar sign $ may be placed in code point 0x5B; in that case the currency sign ¤ is in code point 0xE1.
Code page 880
IBM code page 880 is mostly a superset of DKOI K1, adding support for Cyrillic letters not used in Russian but used in Serbian Cyrillic, Macedonian Cyrillic, Belarusian Cyrillic or Soviet-era Ukrainian Cyrillic (i.e.
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The subject matters to the general reference register because the source frames it as eBCDIC encodings for Cyrillic. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Mar 24, 2026. The linked authority identifier is Q2913361. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “DKOI” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.