<[EMAIL PROTECTED]> wrote in message 
news:[EMAIL PROTECTED]
>> How is it possible that google (super big database) is super fast?
> What type database do they use / software ?

On the hardware side, Google's secret is massively parallel cluster 
computing, coupled with proprietary software for splitting tasks and 
joining results.  They have perhaps 200,000 CPUs.  A query might be given 
to hundreds of them for a fraction of a second.

Terry J. Reedy



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