|
Lyman, P., & Varian H. R.
(2003). How Much Information? 2003.
|
Investigated amount of new information created each year in the US and world in 2002 |
Estimated size based on research into the production of data stored on four storage media: print, film, magnetic, optical |
Measurement, Metrics, Targeted |
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Lyman, P., & Varian H. R.
(2000). How Much Information?.
Journal of Electronic Publishing. 6(2), |
Investigated amount of new information created each year in the US and world in 1999 |
Estimated size based on research into the production of data stored on four storage media: print, film, magnetic, optical |
Measurement, Metrics, Targeted |
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Hilbert, M., & López P.
(2011). The World’s Technological Capacity to Store, Communicate, and Compute Information.
Science. 332(6025), 60 - 65. |
Investigated amounts of total information (not unique) stored, communicated, and computed from 1986 to 2007 |
Used worldwide estimates in 1,120 sources for data in 60 categories (analog and digital) |
Measurement, Metrics, Targeted |
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Gantz, J. F., McArthur J., Minton S., Reinsel D., Chute C., Schlichting W., et al.
(2007). The Expanding Digital Universe [White Paper].
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Investigated size and rate of expansion of the digital universe worldwide in 2006 and 2007 |
Estimated how much data was created in a year by a base of 49 classes of devices or applications that could capture or store information; estimated number of times the data is replicated |
Measurement, Metrics, Targeted |
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Bohn, R. E., & Short J. E.
(2010). How Much Information? 2009 Report on American Consumers.
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Investigated amount of information consumed and rates of increase in consumption in the US from 1980 to 2008 |
Analyzed 20 sources of data flows (such as video, television, radio, internet browsing) consumed by people |
Measurement, Metrics, Targeted |
