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Em3rgent0rdr (talk | contribs) →Examples: rm the roman and chinese abacuses which weren't precisely bi-quinary coded...the 4+1 soroban is more accurate. |
Em3rgent0rdr (talk | contribs) the two pics of the grid of biquinary codes doesn't need to be so big, and they can be combined together into a {{Multiple image}} since are related |
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{{anchor|2-out-of-7|quibinary}}<!-- parked anchor for class of 2-out-of-7 codes related to biquinary code and quibinary codes <ref name="MIL_1991"/> has some info on them to be incorporated -->
{{Multiple image
[[File:Code Biquinaer.svg|thumb|right|One possible binary representation of biquinary code<ref name="Ledley_1960"/>]]▼
| image1 = Code_Biquinaer.svg
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| image2 = Code Biquinaer reflektiert.svg
| caption2 = Reflected biquinary code
| total_width = 300
}}
'''Bi-quinary coded decimal''' is a [[numeral system|numeral encoding scheme]] used in many [[abacus]]es and in some [[Early computer|early computers]], including the [[Colossus computer|Colossus]].<ref>{{cite web|url=https://www.youtube.com/watch?v=thrx3SBEpL8&list=WL&index=17&t=0s |archive-url=https://ghostarchive.org/varchive/youtube/20211212/thrx3SBEpL8| archive-date=2021-12-12 |url-status=live|title=Why Use Binary? - Computerphile |publisher=YouTube |date=2015-12-04 |access-date=2020-12-10}}{{cbignore}}</ref> The term '''''bi-quinary''''' indicates that the code comprises both a two-state (''bi'') and a five-state (''quin''ary) component. The encoding resembles that used by many abacuses, with four beads indicating the five values either from 0 through 4 or from 5 through 9 and another bead indicating which of those ranges (which can alternatively be thought of as +5).
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