ebay - cardamatic

From: Keys <jrkeys_at_concentric.net>
Date: Mon Feb 14 17:42:25 2005

When I got into computers tears ago we did the same thing on the IBM 360/25
(source deck to object deck) and boy you hated when the program had to be
re-punched because of code errors. John
----- Original Message -----
From: "Scott Stevens" <chenmel_at_earthlink.net>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk_at_classiccmp.org>
Sent: Monday, February 14, 2005 5:02 PM
Subject: Re: ebay - cardamatic


> On Mon, 14 Feb 2005 17:40:22 -0500 (EST)
> William Donzelli <aw288_at_osfn.org> wrote:
>
>> > I bought a few boxes (10,000 cards or so) for notes, mixing glue,
>> > etc. Ed Grothus has a cubic cubit -- really -- of unused,
>> > private-labelled but ordinary, 80 col cards. Maybe more. It's
>> > easily millions of cards. Enough to kill us all.
>>
>> An IBM 2520 would eat that many in a week or so...
>>
>> ...and thats a slow puunch...
>>
>> William Donzelli
>> aw288_at_osfn.org
>>
>>
> When my father programmed the IBM 650, there was no input or output from
> the machine except punched cards. The programmer would have his program
> punched, line by line, onto the source card deck. The
> 'compiler/assembler' would be read into the 650's core from a deck of
> cards. The assembler/compiler, now loaded into core, would be run and
> would read in the source deck and punch out an object deck. Then the
> object deck would be moved from the cardpunch 'out' bin to the reader
> 'in' bin and loaded into core to run.
>
> Each pass of the compiler/assembler would eat up another pile of cards
> to make the new 'object' deck. So by necessity, the 650 would eat up a
> large quantity of cards just in the programming/debug process.
>
> This is all repeated from what my father told me a number of years ago.
> Anybody who remembers details otherwise please feel free to correct me.
>
> -Scott
>
>
Received on Mon Feb 14 2005 - 17:42:25 GMT