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Juan Enriquez: Tu vida en línea, permanente como un tatuaje. Microsoft 2020 technology future vision. Pranav Mistry: The thrilling potential of SixthSense technology. Pattie Maes and Pranav Mistry demo SixthSense. Mobile Application Revolution. Sal Khan (with a severe cold!) on Future Talk | Thoughts on education. Computer History. John Kopplin © 2002 The first computers were people! That is, electronic computers (and the earlier mechanical computers) were given this name because they performed the work that had previously been assigned to people. "Computer" was originally a job title: it was used to describe those human beings (predominantly women) whose job it was to perform the repetitive calculations required to compute such things as navigational tables, tide charts, and planetary positions for astronomical almanacs.

Imagine you had a job where hour after hour, day after day, you were to do nothing but compute multiplications. Boredom would quickly set in, leading to carelessness, leading to mistakes. And even on your best days you wouldn't be producing answers very fast. Therefore, inventors have been searching for hundreds of years for a way to mechanize (that is, find a mechanism that can perform) this task. This picture shows what were known as "counting tables" [photo courtesy IBM] A very old abacus.

Computer History Museum. Prevención en el uso de redes sociales. David Pogue: 10 top time-saving tech tips. FRONTLINE/World Ghana: Digital Dumping Ground.