19 Apr
1998
19 Apr
'98
10:43 a.m.
For one thing, why not build a reader? Ought to be a fun weekend
project ;) The other question is whether the Scantron units use
optics or electric sensors for checking multiple choice tests.
The mark sense readers depend on a series of
"timing marks" printed on
the
(lower?) edge of the card in order to work and I
don't think they're
very
good at sensing anything but very dark marks (remember
the "special"
(#1
lead) pencils you had to use when you filled out those
cards in grade
school?)
Visit Doug Jones' web site and drop him an email. He's very interested
in
punched cards and knows quite a bit about readers, old
and new. And
while
you're at it, invite him to subscribe to this list.
;)
http://www.cs.uiowa.edu/~jones/cards/index.html
--
David Wollmann |
dwollmann(a)ibmhelp.com | Support for legacy IBM products.
DST ibmhelp.com Technical Support | Data, document and file conversion
for IBM
http://www.ibmhelp.com/ | legacy file and media
formats.
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