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Drowning in data: IDC predicts a plethora of petabytes

Since 2007, on behalf of EMC, IDC has been attempting to estimate and forecast the amount of digital information created and replicated each year: it puts this at 1.2 zettabytes (10 raised to the power or 21 bytes) in 2010 and expects it to grow to 35 zettabytes by 2020. That's 35 trillion gigabytes.

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