↑ Ceruzzi, Paul E. (2012-06-29). Computing (MIT Press Essential Knowledge). MIT Press.
↑ "The World’s Technological Capacity to Store, Communicate, and Compute Information", especially Supporting online material, Martin Hilbert and Priscila López (2011), Science (journal), 332(6025), 60-65; free access to the article through here: martinhilbert.net/WorldInfoCapacity.html
↑ "video animation on The World’s Technological Capacity to Store, Communicate, and Compute Information from 1986 to 2010
↑ Miller, Vincent (2011) Understanding digital culture. "Convergence and the contemporary media experience". London: Sage Publications.