And now you know the origin of sequence numbers in columns 73-80. Card reader/sorter/punch/printer machines predate these fancy new computers :) I never saw them (I started at a remote reader/printer attached to a 370), but I'm told we did have the machines that you rewired a circuit board to change the program.
> -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Scott T. Harder > Sent: Tuesday, May 26, 2009 9:27 PM > To: [email protected] > Subject: Re: Book on Poughkeepsie > > VBG. Too funny. I've heard many stories about card decks being > dropped every which-way, but what did you have to do when that > happened? Were they numbered or denoted in some way where you could > put the deck back together? Must have been, but what a job; like > trying to find a mis-filed tape. ;-) And, I would think that > everything else came to a halt while the deck was re-ordered. > > -- > All the best, > Scott T. Harder > > > On 5/27/09, Patrick O'Keefe <[email protected]> wrote: > > On Tue, 26 May 2009 23:37:49 -0400, Scott T. Harder > > <[email protected]> wrote: > > > >>... > >>Never heard of 96-column cards, though. Just some ignorance on my > >>part with that one. > >>... > > > > The "96-column" card was really 3 tiers of 32 columns. 6 bits per > logical > > column. It was small (3-1/4 inch wide by 2-5/8 inch high) with small > > round holes.) It was used on the S/3. I'm not sure it was used by > > anything else. > > > > The small card size had both advantages and disadvantages. Large > > decks were light so people tended to pick up decks that were too large. > > If you tried picking up a deck that was much longer that the card's > width > > you were left holding the first and last card with the rest of the deck > > sprayed across the room. > > > > Pat O'Keefe > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
