I want to get a 64-bit machine/OS system so I can put 16Gb of RAM in it.  As
first I assumed that I would have to use the 64-bit version of R to make use
of the 16Gb of RAM, which would mean that I would use the Linux version of
R.  But I have heard many posters say they run the 32-bit version of R on a
64-bit machine/OS.  So my questions, in Windows 64-bit, how much memory
would be available to the 32-bit R binary?  Is it 4Gb (because its a 32-bit
application) or 16Gb (because its being run on a 64-bit OS)?

I know most people will suggest to me to ditch windoze and goto Linux, but
my company IT department has a big problem with that (and no, they don't
want to compile the 64-bit version in Windows, thanks for asking).

TIA for any help.  Roger

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