According to NYT report on http://bits.blogs.nytimes.com/2009/03/16/bottling-the-magic-behind-google-and-facebook/
A number of prominent computer scientists have hailed Hadoop as the right answer for an age when companies have moved from dealing with gigabytes of data to terabytes and now petabytes (one petabyte is equal to 1 million gigabytes or 1,000 terabytes). It's one thing to store all of that information and another thing to be able to mine it in an efficient manner.
- Megabytes
- Gigabytes
- Terabytes
- Petabytes
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