Linux limitations

[Oren Shomron <orens@geocities.com>]

I read an article which points out two limitations of Linux - 2GB of
RAM and 2GB
file sizes.  My question is, are these numbers accurate (for 2.2?) and
if not what are
the true limitations and where can I read about them.
I assume the filesystem was ext2...

http://www.microsoft.com/ntserver/nts/news/msnw/nt4vLinux.asp

Thanks,

    - Oren