On Tue, 2 May 2006 10:23:52 -0700, Charles Mills wrote: >I know IBM does not generally publish numbers, but does anyone have a good >working guess they can share with me on the number of organizations >worldwide using Z or 390 boxes? Something to the nearest thousand would be >great. > >It's for a presentation to software people who are not familiar with our >box. It's not the point of the presentation -- it's just for a "no, the >mainframe is not dead" slide that is a footnote to the presentation's main >point, which has nothing to do with choice of platforms. >
Consider the impact of LPARs & VM and increasingly faster processors over the years. Consider also the number of oursourcing contracts signed by IBM, EDS, CSC (etc.) with companies over the past 20 years. I would not be at all surprised if the number of mainframes has gone DOWN (substantially down) over the past 20 years. In fact, I would be shocked if the number of mainframes in the field is anywhere near the number it was, say, 20 years ago. Perhaps you should rephrase the issue: What proportion of the worldwide business application computing is performed on a mainframe? Recall that IBM's stockholder reports laud the number of mainframe MIPS shipped (but not necessarily the number of mainframes themselves). Mainframes are the mass transit of computing. (Everybody's on an increasingly larger bus these days.) -- Tom Schmidt Madison, WI ---------------------------------------------------------------------- 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
