Mike Shaw wrote: >I have seen the 10,000 number several times in this thread...IBM does >not publish their count of installed mainframes AFAIK...how was that >number developed...anybody know?
I expect that's a marketing number, and I strongly suspect it's high, and includes internal machines and Kyndryl. At the peak of System/370 in the 80s the claimed number I heard was about 20,000, including MVS, VM, VSE, and TPF. We know there's been a lot of erosion, plus simple consolidation both because of mergers and more LPARs and CPUs per CEC. So 10K CECs just seems.very very high to me. I'd bet on more like 2,500 if I had to put money on it. But of course we'll never know because IBM has no reason to tell us. Can't blame 'em for that. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
