On Wed, 11 Nov 2020, Peter Jeremy via COFF wrote:
Since no-one has mentioned it, the reason why Fortran
and Cobol ignore
columns 73-80 goes back to the IBM 711 card reader - which could read
any (but usually configured for the first) 72 columns into pairs of
36-bit words in an IBM 701.
I'll be damned... So obvious when it's pointed out!
-- Dave