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The telegraph revolutionized long distance communication, it transmitted electrical signals over a wire laid between stations.
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The telegraph revolutionized long distance communication, it worked by transmitting electrical signals over a wire in between stations.
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A system of mail delivery operating from 1860-1861traveling 1,800 miles
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Dots and dashes are represented by a series of short and long tones often called dits and dahs by the operators
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Sent from London to New York, this was not broadcasted publicly.
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The first color television sets for this system were sold in 1954. They used a 15 inch screen. Later that year, 19 inch sets were made, and by 1955 all sets were made with a 21 inch picture tube.
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Sent by computer engineer Ray Tomlinson in 1971, the email was simply a test message to himself. The email was sent from one computer to another computer sitting right beside it in Cambridge, Massachusetts
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Tim Berners-Lee, a British scientist at CERN, invented the World Wide Web (WWW) in 1989. The web was originally conceived and developed to meet the demand for automatic information-sharing between scientists in universities and institutes around the world.
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YouTube is an American video-sharing website headquartered in San Bruno, California. The service was created by three former PayPal employees—Chad Hurley, Steve Chen, and Jawed Karim—in February 2005. Google bought the site in November 2006 for US$1.65 billion; YouTube now operates as one of Google's subsidiaries.
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It is the first generation of iPhone that was announced on January 9, 2007 after years of rumors and speculation. It was introduced in the United States on June 29, 2007, and it featured quad-band GSM cellular connectivity with GPRS and EDGE support for data transfer.
