27 Oct
2010
27 Oct
'10
4:20 a.m.
My father (NOT a computer historian) used to tell me
that IBM patented the
shape of the hole! ?That resulted in a few short-lived attempts at
round-hole cards, etc.),
More than a few, actually. There were many, including a trinary one
(Super Bee or something. Anyone help?) that used cards with
information only on the four edges of the card, but the choices were
hole, no-hole, or hole-with-no-outside-edge.
--
Will