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:See TV (disambiguation) for other uses and Television (band) for the rock band
Television is a telecommunication system for broadcasting and receiving moving pictures and sound over a distance. The term has come to refer to all the aspects of television programming and transmission as well. The word television is a hybrid word, coming from both Greek and Latin. "Tele-" is Greek for "far", while "-vision" is from the Latin "visio", meaning " vision" or " sight". It is often abbreviated as TV.
1 History
The development of television technology can be partitioned along two lines: those developments that depended upon both mechanical and electronic principles, and those which are purely electronic. From the latter descended all modern televisions, but these would not have been possible without discoveries and insights from the mechanical systems.
1.1 Electromechanical television
Paul Gottlieb Nipkow proposed and patented the first electromechanical television system in 1884. Nipkow's spinning disk design is credited with being the first television image rasterizer, but it is believed that he never built a prototype to prove the design (it wasn't until 1907 that developments in amplification tube technology made the design practical). Meanwhile, Constantin PerskyiConstantin Perskyi was a Russian scientist who is credited with coining the word television in a paper read (in French) to the 1900 Paris World Exhibition's 1st International Congress of Electricity. At the time, he was Professor of Electricity at the Art had coined the word television in a paper read to the International Electricity Congress at the International World Fair in ParisEiffel Tower has become the symbol of Paris throughout the world. Paris is the capital and largest city of France. The city is built on an arc of the River Seine, and is thus divided into two parts: the Right Bank to the north and the smaller Left Bank to on August 25, 19001900 is the common year starting on Monday. see link for calendar) For the film, see 1900 (film). Events January January 1 Nigeria becomes British protectorate January 2 John Hay announces the Open Door Policy to promote trade with China. January 2 Chicag. Perskeyi's paper reviewed the existing electromechanical technologies, mentioning the work of Nipkow and others.
In 1907– 1910Events January events January 13 The first live musical radio program. Lee De Forest broadcasts a live performance of Enrico Caruso from the Metropolitan Opera. January 26 ? Seine floods in Paris. February events February 8 The Boy Scouts of America is in, Boris RosingBoris L'vovich Rosing 1869 1933) was a Russian scientist and inventor in the field of television. In 1907, he envisioned a TV system using the CRT that was practically demonstrated in 1911. Rosing, Boris Rosing, Boris Rosing, Boris. and his student Vladimir ZworykinVladimir Kosma Zworykin ( July 30, 1889 July 29, 1982) was a pioneer of television technology. Zworykin invented the iconoscope, a television transmitting tube, and the kinescope, a cathode ray tube that projects pictures it receives onto a screen. He als demonstrated a television system that used a mechanical mirror-drum scanner in the transmitter and the electronic Braun tube ( cathode ray tubeThe cathode ray tube or CRT invented by Karl Ferdinand Braun, is the display device used in most computer displays, video monitors, televisions and oscilloscopes. The CRT developed from Philo Farnsworth's work was used in all television sets until the lat) in the receiver. Rosing disappeared during the Bolshevik revolution of 1917, but Zworykin later went to work for RCA to build a purely electronic television, the design of which was eventually found to violate patents by Philo Taylor Farnsworth.
A semi-mechanical analogue television system was first demonstrated in London in February 1924 by John Logie Baird with an image of Felix the Cat and a moving picture by Baird on October 30, 1925. In 1928 Baird's company (Baird Television Development Company / Cinema Television) broadcast the first transatlantic Television signal, between London and New York, and the first shore to ship transmission. He also demonstrated a Electromechanical colour, infrared (dubbed "Noctovision"), and stereoscopic television, using adding additional lenses, disks and filters. In parallel he developed a video disk recording system (dubbed "Phonovision"), a number of the Phonovision[1] recordings, dating back to 1927 still exist. In 1929 he became involved in the first experimental Electromechanical television service in Germany. In 1931 he made the first live transmission, of the Epsom Derby. In 1932 he demonstrate ultra-short wave television. Baird's system was eventually adopted by the BBC, who later discontinued its use in 1937 in favor of purely electronic television.
