Petabyte - 10**15

Petabytes in use

* The Internet Archive contains almost 2 petabytes of data. [1]
* Google processes about 20 petabytes of data a day. [2]
* The 4 experiments in the Large Hadron Collider will produce about 15 petabytes of data per year, which will be distributed over the LHC Computing Grid.

etc ....

* 1,000,000,000,000,000 bytes — 10005, or 1015, or
* 1,125,899,906,842,624 bytes — 10245, or 250.


> > Huge amounts of data will pour in — so big that the lab's computers
> > can't sift through it all. So scientists, who will monitor the
> > experiment at above-ground control centers, have devised a way to
> > share the load among dozens of leading computing centers worldwide.
> > The result is the "LHC Grid," a network of 60,000 computers to
> > analyze what happens when protons are hurled at each other. That
> > computing power is needed if scientists are to find what they are
> > looking for among the mountains of data.
> > "You can think of each experiment as a giant digital camera with
> > around 150 million pixels taking snapshots 600 million times a
> > second," said CERN's Ian Bird, who leads the grid project.
> > Sophisticated filters discard all but the most interesting data,
> > still leaving some 15 petabytes to be analyzed. That's enough to
> > fill 2 million DVDs.


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http://en.wikipedia.org/wiki/Petabyte


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