These two Chapters are 2014 updates of the 2007 estimations from
Hilbert, M., & López, P. (2011). The World’s Technological Capacity to Store, Communicate, and Compute Information. Science, 332(6025), 60–65.
For more see here: http://www.martinhilbert.net/worldinfocapacity-html/
These updates extrapolate the estimates from 1986-2007, and present the world's capacity to store and communicate information from 1986 – 2014.
Hilbert, M. (2017). Information Quantity. In Encyclopedia of Big Data (pp. 1–4). Springer, Cham. https://doi.org/10.1007/978-3-319-32001-4_511-1
Hilbert, M. (2018). Communication Quantity. In Encyclopedia of Big Data (pp. 1–6). Springer, Cham. https://doi.org/10.1007/978-3-319-32001-4_512-1
For the Methodological & Statistical Background of this update, see below:
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