Editing Binary code (section)

==Other forms of binary code==
{{Main|List of binary codes}}
{{original research|section|date=March 2015}}
[[File:Bagua-name-earlier.svg|thumb|Daoist Bagua]]
The bit string is not the only type of binary code: in fact, a binary system in general, is any system that allows only two choices such as a switch in an electronic system or a simple true or false test.

===Braille===
[[Braille]] is a type of binary code that is widely used by the blind to read and write by touch, named for its creator, Louis Braille. This system consists of grids of six dots each, three per column, in which each dot has two states: raised or not raised. The different combinations of raised and flattened dots are capable of representing all letters, numbers, and punctuation signs.

===Bagua {{anchor|BaGua}}===
The ''[[bagua]]'' are diagrams used in ''[[feng shui]],'' [[Taoist]] [[cosmology]] and ''[[I Ching]]'' studies. The ''ba gua'' consists of 8 trigrams; ''bā'' meaning 8 and ''guà'' meaning divination figure. The same word is used for the 64 guà (hexagrams). Each figure combines three lines (''yáo'') that are either broken ([[Yin and yang|''yin'']]) or unbroken (''yang''). The relationships between the trigrams are represented in two arrangements, the primordial, "Earlier Heaven"  or "Fuxi" ''bagua'', and the manifested, "Later Heaven", or "King Wen" ''bagua''.<ref name='wilhelm'>{{cite book |last=Wilhelm |first=Richard |author-link=Richard Wilhelm (sinologist) |others=trans. by [[Cary F. Baynes]], foreword by [[C. G. Jung]], preface to 3rd ed. by [[Hellmut Wilhelm]] (1967) |title=The I Ching or Book of Changes |publisher=Princeton University Press |year=1950 |location=Princeton, NJ |url=https://books.google.com/books?id=bbU9AAAAIAAJ&pg=PA266 |isbn=978-0-691-09750-3 |pages=266, 269}}</ref> (See also, the [[King Wen sequence]] of the 64 hexagrams).

===Ifá, Ilm Al-Raml and Geomancy{{anchor|Ifá}}===
The [[Ifá]]/Ifé system of divination in African religions, such as of [[Yoruba people|Yoruba]], [[Igbo people|Igbo]], and [[Ewe people|Ewe]], consists of an elaborate traditional ceremony producing 256 oracles made up by 16 symbols with 256 = 16 x 16. An initiated priest, or [[Babalawo]], who had memorized oracles, would request sacrifice from consulting clients and make prayers. Then, divination nuts or a pair of chains are used to produce random binary numbers,<ref>{{Cite book |last=Olupona |first=Jacob K. |url=https://www.worldcat.org/oclc/839396781 |title=African Religions: A Very Short Introduction |publisher=[[Oxford University Press]] |year=2014 |isbn=978-0-19-979058-6 |location=Oxford |pages=45 |oclc=839396781}}</ref> which are drawn with sandy material on an "Opun" figured wooden tray representing the totality of fate.

Through the spread of [[Islamic]] culture, Ifé/Ifá was assimilated as the "Science of Sand" (ilm al-raml), which then spread further and became "Science of Reading the Signs on the Ground" ([[Geomancy]]) in Europe.

This was thought to be another possible route from which computer science was inspired,<ref>{{Cite web|last=Eglash|first=Ron|date=June 2007|title=The fractals at the heart of African designs|url=https://www.ted.com/talks/ron_eglash_the_fractals_at_the_heart_of_african_designs/up-next#t-13472|url-status=live|access-date=2021-04-15|website=www.ted.com|archive-url=https://web.archive.org/web/20210727161435/https://www.ted.com/talks/ron_eglash_the_fractals_at_the_heart_of_african_designs/up-next |archive-date=2021-07-27 }}</ref> as Geomancy arrived at Europe at an earlier stage (about 12th Century, described by [[Hugo of Santalla|Hugh of Santalla]]) than [[I Ching]] (17th Century, described by [[Gottfried Wilhelm Leibniz]]).