On Wed, Mar 21, 2018 at 03:51:24AM -0500, Dejan Stamatovic wrote:
> Just for the sake of anybody’s interest.
> 
> There in Serbia (a small European market) we have:
> 
> 4 z/OS installations
> 
> 1 VSE installations 
> 
> Do not know whether this proves anybody's point but there it is! 

So, quick BOTEC (or rather, back of Lisp interpreter which is my desk
calculator of choice), assuming 7 bln total population and 7.111mln
for Serbia (from Wikipedia):

5]> (/ 7000000000 (/ 7111024 4l0))
3937.548234965878332L0

[6]> (/ 7000000000 (/ 7111024 1l0))
984.387058741469583L0

This gives about 4k z/OS and 1k VSE worldwide. Quite in agreement with
estimation given few posts earlier by Phil Smith, if I recall
correctly. However, I do not claim that my method is worth anything.

-- 
Regards,
Tomasz Rola

--
** A C programmer asked whether computer had Buddha's nature.      **
** As the answer, master did "rm -rif" on the programmer's home    **
** directory. And then the C programmer became enlightened...      **
**                                                                 **
** Tomasz Rola          mailto:[email protected]             **

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