Reading ancient paper digital media

CSquared csquared3 at tx.rr.com
Sun Apr 4 01:14:28 CDT 2010


Rich Alderson wrote:
> From: Chuck Guzis
> Sent: Thursday, April 01, 2010 10:47 AM
> 
>> On 1 Apr 2010 at 13:18, M H Stein wrote:
> 
>>> As a matter of fact reading the card 'sideways' was a basic principle
>>> of the electro-mechanical punched card systems that (along with card
>>> sales) were IBM's bread and butter until the mid-sixties.
> 
>> Now that I think of it, all of the earlier IBM equipment, with the 
>> exception of card punches, were fed long-edge on, right from all of 
>> the unit (sorters, 407 accounting machine, 519 reproducing punch)  
>> record equipment, through peripheral card readers, such as the 1402 
>> and 1622.  But the 2501, ISTR was "short edge on"--or at least that 
>> was the way the cards were ejected into the stacker.
> 
>> I imagine that "long edge on" helped greatly to improve the 
>> throughput at the expense of greater complexity.
> 
> 
> And thus the ancient IBMer joke that Thomas Watson Sr. was buried
> "face down, 9-edge first".
> 
> 
> Rich Alderson
> Vintage Computing Sr. Server Engineer
> Vulcan, Inc.
> 505 5th Avenue S, Suite 900
> Seattle, WA 98104
> 
> mailto:RichA at vulcan.com
> mailto:RichA at LivingComputerMuseum.org
> 
> http://www.PDPplanet.org/
> http://www.LivingComputerMuseum.org/
> 
I've always remembered it as 12-edge first, and was told that was 
considered the "correct" card orientation for processing cards in the 
early days, but ICBW.
Later,
Charlie Carothers




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