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10 Big Breakthroughs: A History Of Accelerating Technology Innovation

By Steven Burke CRN
3:00 PM ET Tue. Nov. 13, 2012
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Telecommunications - From Phone To Smartphone

The telephone, an early prototype developed by Alexander Graham Bell in 1876, was adopted much more quickly than written communications advances. "It took [the telephone] only 50 years to reach a quarter of the U.S. population," says Kurzweil. "The cell phone did that in seven years."

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