Global data storage calculated at 295 exabytes
Mankind's capacity to store the colossal amount of information in the world has been measured by scientists.
The study, published in the journal Science, calculates the amount of data stored in the world by 2007 as 295 exabytes.
That is the equivalent of 1.2 billion average hard drives.
The researchers calculated the figure by estimating the amount of data held on 60 technologies from PCs and and DVDs to paper adverts and books.
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