Ahh, yes. The slow refresh rate of the 3290. I don't know about yours, but we could not only watch the 3290 repaint the screen top to bottom, but we could also hear it repaint. Kind of a quiet rattling or rapid clicking sound during a refresh. Couldn't hear it in the machine room, but it was definitely audible in an office setting.
Rex -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Tom Brennan Sent: Friday, April 28, 2017 11:40 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: new member, need old iron assistance I worked with a 3290 that had 4 mod-2 displays all visible at once. I always thought it had 4 coax cables, but now I can't remember ever looking at the back. It was in a tape room and had an MVS console for each of 3 systems, with the 4th display available as a TSO terminal. This was probably a couple of years before TN3270 emulators with multiple windows became popular, and I used it myself a bit (I was the tape sysprog at the time). I remember underlines instead if highlighted text, probably because the plasma pixels just had two settings - on or off. I also remember it being rather slow displaying text - you could basically watch the text "paint" itself from top-to-bottom when a new screen came in from the host. But hey, you got to type on a 3270 keyboard with real Clear and Reset and Erase-EOF keys. Now I feel bad because the one I worked on probably ended up in the trash. I never heard of the museum, so I googled for the address and there's a street-view picture of a guy in a black t-shirt unloading various boxes that must be for the museum. It's less than an hour from a datacenter I worked at last month, so if I need to go to Pittsburgh again I'd sure like to see the museum. And yes, please post anything about it here! Disclaimer: I have absolutely no authority whatsoever :) The information contained in this message is confidential, protected from disclosure and may be legally privileged. If the reader of this message is not the intended recipient or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any disclosure, distribution, copying, or any action taken or action omitted in reliance on it, is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by replying to this message and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
