Nope, not exactly. Count me in. In the late 70s we ran an election tabulation program using CB on a 25?? reader. The card had punches in almost every position. Years before the hanging chads.
-----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Ed Gould Sent: Wednesday, October 19, 2005 11:21 PM To: [email protected] Subject: Re: MVCIN instruction On Oct 18, 2005, at 11:30 PM, Robert A. Rosenberg wrote: > --SNIP------------------ > And a 2501 which was an Unbuffered Card Reader (unlike the others) > where the card's data was transmitted as it passed the read station. I > had some fun with a 2501 when a shop I was in replaced a 2540 with one > and then found out that there was a set of programs that needed to > read cards punched with both Column Binary and EBCDIC Data Columns at > the same time. With the 2540, the programs would issue a Read Column > Binary/No-Stacker-Select to get the 160 Column Binary Bytes followed > by a Read EBCDIC/Stacker-Select/Data-Check-Off. Since you only got on > crack at the card with the 2501, they had to be read as Column Binary > and then have the EBCDIC columns converted from the internal version > of Card Image to the real internal EBCDIC mappings. This was done with > a sequence of TRs followed by a OC (to overlay rows 12-3 over rows > 4-9) and a final TR to do the actual conversion from the Card Punch > Image mapping to Internal mapping. The hardest part was creating the > mapping TR table for that last TR (the other TR Tables were mechanical > and a simple pattern of progressions). > > ---SNIP---------- Robert, Congrats.. you are the first person that I have ever heard of that used column binary. It seems it was a legit reason as well. Here I thought it was only used by some IBMer that was in a back room. Ed ---------------------------------------------------------------------- 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
