Talk:Keypunch

message: :These machines were designed slightly later than the IBM 129, and incorprated electronic memory. This allowed them to  store the user's keystrokes and then punch the entire card all at once (and hence allowed correction of errors before the card was punched).
I removed the text shown above, because UNIVAC 90 column keypunches always punched all 90 columns at once, even when they were entirely mechanical. See the section on 90 Column Cards (quoted below).
:"Remington Rand, which acquired the UNIVAC computer family from the Eckert-Mauchly Computer Corporation, had a well-established line of tabulating machinery that dodged the IBM Hollerith patents by using 90 column cards with round holes, punched by mechanical punches that punched the entire card at once" (Emphasis added)
These punches far predated the IBM 129 as they were already in production by Remington Rand when EMCC was acquired on February 15,1950. -- RTC 22:14, 28 September 2006 (UTC)
thread_title:  UNIVAC 90 column keypunches 

message: I'm feeling strangely dissatisfied with the terse explanation I was able to fit in the provided space for my edit concerning the number of characters stored on this plate.  Before this edit, a sentence in the article read…The character was printed using a 5x7 dot matrix array of wires; the device from which it derived the shape of the character was a metal plate, called the "code plate," with space for 1680 pins (35 pins times 48 printable characters).  Having one of these plates in my possession, and having carefully examined it, I count fifty-six (56)—and not forty-eight (48)—rows of thirty-five (35) bits, for a total of 1960 rather than 1680 bits.  Examining the image :Image:IBM-026_wireplate.jpg, I find the same thing.  I have, therefore, edited this article to reflect this count. — Bob Blaylock (talk) 09:29, 1 October 2010 (UTC)
thread_title:  Number of characters on the IBM-26 character-generator ROM? 

message: A recent edit to the reasons for the keypunch's decline adds "changes in the data input paradigm." Please elaborate--as it stands the words have little content.--agr (talk) 01:16, 2 August 2012 (UTC)
thread_title:  changes in the data input paradigm 

message: Hello! This is a note to let the editors of this article know that :File:Card puncher - NARA - 513295.jpg will be appearing as picture of the day on June 19, 2013. You can view and edit the POTD blurb at Template:POTD/2013-06-19. If this article needs any attention or maintenance, it would be preferable if that could be done before its appearance on the Main Page. Thanks! — Crisco 1492 (talk) 01:52, 3 June 2013 (UTC)
thread_title:  [[:File:Card puncher - NARA - 513295.jpg]] to appear as POTD 

message: On this page:
   http://en.wikipedia.org/wiki/Keypunch
I tried to correct the outdated link in Reference 10: 
   "Fierheller, George A. (2006). Do Not Fold..."
When I clicked [edit] there was no code to edit -- all I saw was:
   = = References = =
   { { Reflist|2 } }
   < references / >
   { { Refend } }
The outdated Reference 10 link on the /Keypunch/ page is:
   http://gfierheller.ca/books/pdf/do_not_fold.pdf
The correct link is:
   http://www.gfierheller.ca/wp-content/uploads/2013/03/do_not_fold.pdf
I don't seem to be able to see the code in the Reference section to fix the bad link. Would someone please fix this for me?  
Thanks!
:Done! Thank you for noting this problem. Here's how it works: The code in the Reference section itself is only a placeholder, so if you click 'Edit' next to that heading, you see almost nothing. The actual content for each reference item is included at the appropriate location within the main text body. It's easier to select 'Edit' at the top of the whole page and work with the text there. Look out for the ref and /ref delineation marks. Tnx again for your help - and keep on editing!  jxm (talk) 00:51, 21 June 2013 (UTC)
thread_title:  Requesting a bad link be fixed -- I don't seem to be able to do this.  Specifics given. 

message: books.google.fr/books?id=K0ZMIxELllwC&pg=PA5  — Preceding unsigned comment added by 77.193.107.123 (talk) 14:13, 24 January 2015 (UTC)
thread_title:  suggested reading: books?id=K0ZMIxELllwC 

message: Some of these keypunch models deserve their own article; it is difficult to give them as much detail as they each deserve in one giant article. A modern reader may want to understand in much more concrete detail how the operator interacted with the equipment. In particular, exactly how could the operator see what had just been keyed, since there mostly seems to be no display, other than the punched card itself? Did the IBM 129 have a display -- how did the operator know whether they had made a mistake, before deciding to actually punch the card they had just keyed?-71.174.183.90 (talk) 14:23, 30 May 2016 (UTC)
thread_title:  operator interface - mistake verification