> weird vestage  of that survived as radix-20 in the pdp-11 OSes
> for on disk storage.

Wasn't that radix-50?  Characters space, A-Z0-9.$ and probably @
used for filenames, and symbol names (eg for the linker).
So 6 character variable names (all that fortran supported) could
be held in 32bits.
Note this is 50 octal, decimal 40, allowing 3 characters in 16 bits.

Actually quite useful it you are trying to squeeze text into a small
space....

	David

-- 
David Laight: david@l8s.co.uk