In article ,
says...
To win a bet a number of years ago with a co-worker who claimed it couldn't be
done, I wrote a Cobol-85 program to manipulate individual bits in a
doubleword. It was an interesting intellectual exercise, but one with no
reasonable practical application other than winning a bet.

I was given a test one time in the EAM days to wire a collator to feend
three cards fron the primary followed by two cards from the secondary
and repeat. Blank cards, that is :-).

I couldn't do it, but an experienced hand showed me how. Lots of relay
clicking and cycle delays.

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BNSF = Build Now, Seep Forever