punchcard svg file available
mhs.stein at gmail.com
Thu Sep 10 13:57:39 CDT 2015
For a while many utility bills etc. were sent out
with prepunched cards containing the customer and
billing information, to be mailed back with your
payment for proper allocation.
----- Original Message -----
From: "Fred Cisin" <cisin at xenosoft.com>
To: "General Discussion: On-Topic Posts"
<cctech at classiccmp.org>
Sent: Thursday, September 10, 2015 2:47 PM
Subject: Re: punchcard svg file available
>>>> If you find a source of paper stock that
>>>> works, please let everyone
>>>> know about it. The real paper is gone, and
>>>> will likely never be made
>>>> again. It is a specialized stock that is
>>>> extremely difficult to make.
>>> What is different about it? Thickness?
>>> Weight/square metre? Density?
>>> Impregnated with something?
> On Thu, 10 Sep 2015, simon wrote:
>> Its hard to explain. it feels tough and
>> bendable, but it is thinner as you would expect
>> from the toughness.
> Also, had to have the right friction to slide
> through, but catch on the rollers. CDC's
> optical card readers came later, and made
> dramatic improvements in DP.
> In those days, the cardstock was extremely
> available, in large sheets and in precut blanks,
> in a variety of colors. Print-shops abounded
> who would do custom cards, if your business
> thought that it needed them.
> And yet, some card readers were amazingly
> For example, half a century ago, CBS had a bunch
> of projects, such as the National Driver's Test
> (1966). IBM provided the hardware and software.
> They decided to give out Port-A-Punch cards,
> which were 80 column cards with every other
> column of holes pre-perforated, so that anybody
> could take a special stylus or a random pencil
> and create their own hanging chips/"Chads".
> But, how to recollect them? They actually had
> people stick a stamp on them and MAIL them!
> ("Business Reply Mail" would have shifted the
> franking burden, otherwise it would have made
> MUCH more sense) They then successfully ran them
> through the card reader of a 360! Keep in mind
> that it was an IBM PR stunt, so they had a CE
> standing next to the reader, clearing jams in
> real-time. I wonder if IBM cheated and modified
> the input maw?
> So, the specific card-stock is critical, but it
> worked with a postage stamp stuck to it?
> Although the hardware reliability was a welcome
> surprise (I wonder how my life would have gone
> if it hadn't), the software wasn't. The live
> statistics weren't adding up close enough to
> 100%! On camera, Walter Cronkite was stalling,
> and right behind him, my father was frantically
> manually adding the numbers. Starting a week
> later, there were a copy of McCracken FORTRAN
> and Decima Anderson's book on my parent's coffee
> Instead of continuing to use 084 sorters, we
> learned a little FORTRAN.
> Grumpy Ol' Fred cisin at xenosoft.com
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