Global digital information amounted to 281 billion gigabytes in 2007 and growing
Global digital information (the digital universe) amounted to 281 billion gigabytes (GB) (281 exabytes) in 2007, or almost 45 GB of digital information for every person on earth, according to EMC-sponsored research by IDC. The figure is 10 percent more than the previous estimate, and is expected to hit 1.8 zettabytes (1,800 exabytes) in 2011.
In graphical terms, IDC describes the digital universe to be the equivalent of over 17 billion eight GB iPhones. IDC notes that the digital universe has a compound annual growth rate of about 60 percent, thanks to a jump in worldwide shipments of digital cameras and televisions, as well as better understanding of information replication trends.
Increasing internet access in developing nations, sensor-based applications and extensive online social networks have also contributed to the growth of digital information worldwide. Read the full article from Computerworld here.