9 Oct
2005
9 Oct
'05
4:29 p.m.
...
Aperture cards. An IBM punch card with a square of
film in
it.
Nope. I know what an aperture card is. This was something entirely
different. The little piece of film has some hole at one end to shove
(pull?) it around with. The other writer was correct. The little cases the
things were in vaguely resembled the little cases you might see a whole
bunch of single edge razor blades in. The reader would pull the right
cartridge, then pull the right film, then read the patterns. There was no
paper attached to this and the file did not contain an image like an
aperture card does. It was data stored in a black and white pattern on the
film
Gil