The Bibi-binary system for numeric notation (in French système Bibi-binaire, or abbreviated "système Bibi") is a hexadecimal numeral system first described in 1968.
https://en.m.wikipedia.org/wiki/Bibi-binary
The Bibi-binary system for numeric notation (in French système Bibi-binaire, or abbreviated "système Bibi") is a hexadecimal numeral system first described in 1968.
https://en.m.wikipedia.org/wiki/Bibi-binary