[getting old punched cards read]

From: Max Eskin <maxeskin_at_hotmail.com>
Date: Sun Apr 19 09:43:04 1998

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
>(lower?) edge of the card in order to work and I don't think they're
>good at sensing anything but very dark marks (remember the "special"
>lead) pencils you had to use when you filled out those cards in grade
>Visit Doug Jones' web site and drop him an email. He's very interested
>punched cards and knows quite a bit about readers, old and new. And
>you're at it, invite him to subscribe to this list. ;)
>David Wollmann |
>dwollmann_at_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.

Get Your Private, Free Email at http://www.hotmail.com
Received on Sun Apr 19 1998 - 09:43:04 BST

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:30:41 BST