I totally agree with the dismay expressed at omission of 9672/9674. I've only been in this biz since the late 70s, but I was blown away at the architectural upheaval represented by the move from bipolar to CMOS. Yet the 9672 still ran decades-old programs without even recompile, let alone revision.
The 9672 ran rather like a dog in the early days. We had to modify SMF exits to allow up to three times the coded CPU limit for batch jobs to avoid S322. But it worked, and as time went on, the CMOS processors became faster than the bipolar machines they replaced. I smell genius. ;-) . . J.O.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 323-715-0595 Mobile 626-543-6132 Office ⇐=== NEW robin...@sce.com -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of John McKown Sent: Friday, March 24, 2017 1:07 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: (External):Re: GREAT presentation on the history of the mainframe On Fri, Mar 24, 2017 at 2:44 PM, R.S. <r.skoru...@bremultibank.com.pl> wrote: > W dniu 2017-03-24 o 18:04, Pommier, Rex pisze: > >> The only thing I wish he would have included in the presentation was >> the original 9672/9674 which was a huge shift from the GA-AS >> technology to silicon. >> > > I wish I hadn't worked on pre-9672 machines. > Was it really non-silicon? I was pretty sure it was silicon, but ECL, > not CMOS. > > BTW: > What about LPARs? > Yes. In "partitioned mode". > How HMC looked like? Was it PC-DOS-based? > No HMC. The console looked like a 3270 which was "built into" the machine. Older ones had _dials_ and _buttons_ and _LIGHTS_! Oh, how I miss the lights. > What about I/O cards? were they similar to cards available in 9672? > What OSA options were available? > No OSAs. Had to have an outboard controller on a regular byte multiplexer channel (not block or selector). > What about cryptoHW? > <giggle> No co-processor cards. Unless you think of integrated channels as a co-processor, that is. > > -- > Radoslaw Skorupka > Lodz, Poland > > -- "Irrigation of the land with seawater desalinated by fusion power is ancient. It's called 'rain'." -- Michael McClary, in alt.fusion Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
