Kent A. Reed wrote: > Did you ever have to use a hand punch to fix paper tape output? Similar > to the "swinging chad" problem experienced in the Bush/Gore election, I > had a Digital Equipment "high-speed" (wow, tens of 8-bit characters per > sec) paper tape punch on my PDP-11 that started mispunching during a > once-in-a-lifetime experiment. Fortunately, I could infer from tests > which pin was sticking, check suspicious characters against the Teletype > printout, and punch out missing and partial holes by hand. Hooray for > redundancy.
I started programming using 'mark sense' cards, which one filled in with black markers, 40 columns per side, and the reader then punched them ... and printer the result on the top edge for checking. Pickup was once a week, with the previous weeks run being returned at the same time, so it could take weeks to get something that actually worked :) But then with 16K words of core store memory the ICL1901 could not actually do a lot ... -- Lester Caine - G8HFL ----------------------------- Contact - http://lsces.co.uk/wiki/?page=contact L.S.Caine Electronic Services - http://lsces.co.uk EnquirySolve - http://enquirysolve.com/ Model Engineers Digital Workshop - http://medw.co.uk// Firebird - http://www.firebirdsql.org/index.php ------------------------------------------------------------------------------ BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA The must-attend event for mobile developers. Connect with experts. Get tools for creating Super Apps. See the latest technologies. Sessions, hands-on labs, demos & much more. Register early & save! http://p.sf.net/sfu/rim-blackberry-1 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
