I don't think anyone but IBM can prove how many mainframes there are now and how many there were 10 or 20 years ago. I can give you examples of my home city of Milwaukee though.
Back in the mid eighties, when I was employed but looking for a job, there were probably between 30 to 40 MVS datacenters within 30 miles of my house. We had a group called the Synergistics OS Users Group that met back quarterly, and had a membership list of all those who belonged. Four years ago, as I've mentioned on IBM-Main before, when P&H Mining closed their z/OS datacenter, my best estimates of how many z/OS customers that were in the area within 30 miles from my house, was 10 or 11. I did get some info from friends of mine that worked at IBM at the time. I may have missed some datacenters, but probably not too many. I suspect that if you go to any big city in the US, the number of z/OS datacenters has decreased by more than half. I know that in Milwaukee, the biggest bank had a datacenter. Now that datacenter is in another city through merger. Many of the manufacturing plants, like my old employer, either closed their datacenter, consolidated it, or went out of business. Allis Chalmers was a HUGE manufacturing presence in Milwaukee for many years. My Dad worked there for 30 years. I also knew some of the people that worked in their datacenter. All gone now. -- Eric Bielefeld Systems Programmer IBM MVS Technical Services Dubuque, Iowa 563-845-4363 ---- Ted MacNEIL <[email protected]> wrote: > >My point was: 10 years ago there were more mainframe shops than today. > > Prove it! > Nobody has the stats as to how many exist. > Then, or now! ---------------------------------------------------------------------- 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
