Why does ILLIAC-1 use `KSNJFL` for digits 10₁₀ – 15₁₀ in their sexadecimal (hexadecimal) notation? – retrocomputing.stackexchange.com
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We now almost invariably use 0123456789ABCDEF as our hexadecimal digits,
as popularised by the IBM 360, but one of the earliest machines
to use hexadecimal, the first ILLIAC, used KSNJFL for 1010₂ – ...