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Information about techtime

Published on February 27, 2008

Author: Churchill


Technology Timeline:  Technology Timeline Highlights of technological innovations What impact have they had on education? Technology Timeline:  Technology Timeline Moveable Type: 960 AD :  Moveable Type: 960 AD Johannes Gutenberg's invention of the printing press in 1450 is widely thought of as the origin of movable-type printing. A closer look at the history of printing, however, shows that China was the first country in the world to use: Moveable Type: 960 AD:  Moveable Type: 960 AD clay movable type (Northern Song: 960-1127 AD). wooden movable type (Southern Song: 1127-1276 AD). tin movable type (Yuan: 1271-1368 AD). Braille Printing: 1827:  Braille Printing: 1827 The first book in braille was published in 1827. Telecommunications: 1835:  Telecommunications: 1835 Samuel F. B. Morse conceived of an electromagnetic telegraph in 1832 and constructed an experimental version in 1835. Telecommunications: 1835:  Telecommunications: 1835 He did not construct a truly practical system until 1844, when he built a line from Baltimore to Washington, D.C. Telephone: 1876:  Telephone: 1876 1876, Alexander Graham Bell invented his "electrical speech machine," which we now call a telephone. Light Bulb: 1879:  Light Bulb: 1879 Thomas Alva Edison experimented with thousands of different filaments to find just the right materials to glow well and be long-lasting. Light Bulb: 1879:  Light Bulb: 1879 In 1879, Edison discovered that a carbon filament in an oxygen-free bulb glowed but did not burn up for 40 hours. RR Telegraph: 1887:  RR Telegraph: 1887 Granville T. Woods patented the Synchronous Multiplex Railway Telegraph, which allowed communications between train stations from moving trains. Woods' invention made it possible for trains to communicate with the station and with other trains so they knew exactly where they were at all times. Color Pictures: 1892:  Color Pictures: 1892 Frederick Ives developed his Kromskop system, which was the world's first complete system for natural color photography. Color Pictures: 1892:  Color Pictures: 1892 Kromskop was an early viewing instrument using a system of mirrors and color filters to synthesize a full color image. Motion Pictures: 1895:  Motion Pictures: 1895 The Frenchman Louis Lumiere is often credited as inventing the first motion picture camera. Motion Pictures: 1895:  Motion Pictures: 1895 Lumiere actually invented a portable motion-picture camera, film processing unit and projector called the Cinematographe, three functions covered in one invention. Radio Amplifier: 1906:  Radio Amplifier: 1906 Lee De Forest invented the device that made wireless radio broadcasting practicable: the "triode" or "audion" amplifier. Radio Amplifier: 1906:  Radio Amplifier: 1906 His audion tube became an essential component of not only commercial radio, but the telephone, television, radar, and computer. Personal Computer: 1974:  Personal Computer: 1974 Personal Computers (microcomputers) were made possible by two technical innovations: • the integrated circuit, which was developed in 1959. • the microprocessor, which first appeared in 1971. Personal Computer: 1974:  Personal Computer: 1974 The first desktop-size system specifically designed for personal use appeared in 1974 and was offered by Micro Instrumentation Telemetry Systems (MITS). Sold as a computer kit through a magazine, the computer, which was called Altair, retailed for slightly less than $400. Personal Computer: 1974:  Personal Computer: 1974 The first major electronics firm to manufacture and sell personal computers, Tandy Corporation (Radio Shack), introduced its model in 1977. Personal Computer: 1974:  Personal Computer: 1974 Early in 1977, Jobs and Wozniak founded Apple Computer, Inc. and in April of that year introduced the Apple II. Bibliography:  Bibliography “Chronology of Personal Computers”. August 25, 2002.] Enchanted . “The Invention of the Light Bulb: Davy, Swan and Edison”. [] Bibliography:  Bibliography The Great Idea Finder. “Invention of the Telephone”. August 25, 2002. [] “The Invention and Effect of Chinese Moveable-type Printing”. August 25, 2002. []

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