Hi Paul! :-)

 PR> Considering all the work that got done
 PR> on IBM S/360 OS/MVT mainframes, all of which were 4MB or less--the
 PR> architecture placed a 16MB limit on addressability--one wonders why
 PR> one needs a 1GB DIMM. 
Well, nowadays the most important use for lots of memory (at least under
Unix-like operating systems) is disk cache. Memory is already slow from the
CPU's point of view, going to disk awfully so. Of my 640M, about 500M are
disk cache most of the time.

Ciao
Pascal

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