Back from my days in the computer room. The 2540 had a long slanted card read station and you would place the cards to be read in that. As the cards were being read the reader would vibrate the cards so they would be ready to be read. To get all the static electricity out of the cards. The other side was the punch. Memory is iffy here. You could merge the cards read if you wanted to into the third bin and also the insert punched cards. Other wise the right 2 bins were only for reading of cards and the left two bins were for punching. Its been years so don't come down on me if I am wrong.
Ed -------SNIP-------------------------- :>http://www.columbia.edu/cu/computinghistory/2540.html :>Google ad: first hit with search words "IBM 2540 picture". :>But, looking at the picture I realise I've forgotten which "feed" was the reader "feed" and which was the punch "feed"! I would bet that a lot of operators did as well. -- Binyamin Dissen <bdis...@dissensoftware.com> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu 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 lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
