History of Television

History of Television

 The History of television technology can be divided 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.

The word television is a hybrid word, created 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 or the telly. The origins of what would become today's television system can be traced back to the discovery of the photoconductivity of the element selenium by Willoughby Smith in 1873, and the invention of a scanning disk by Paul Gottlieb Nipkow in 1884. Experiments in television broadcasting were initiated during the 1920s in the United States and Europe. These experiments used a mechanical scanning disc that did not scan a picture rapidly enough. In 1923, however, came the invention of the iconoscope, the electric television tube. The inventions of the kinescope or picture tube, the electronic camera and TV home receivers arrived in rapid succession during the next few years and by the 1930s the National Broadcasting Corporation NBC) had set up a TV station in New York, and BBC - a TV station in London, offering regular telecast programmes. Germany and France too established television stations around the same time. The World War put a brake on further developments in television, though in Nazi Germany Television was widely used as an instrument of political propaganda. Nazi party conventions were televised, but the top event in the first chapter of German television history was the 1936 Olympics in Berlin, which was staged as a gigantic propaganda show. In 1948, there were as many as 41 TV stations in the United States covering 23 cities through half a million receiving sets. The age of satellite communication dawned in 1962 with the launching of Early Bird, the first communication satellite. The two big international satellite systems, Intelset and Intersputnik began operating in 1965 and 1971 respectively and from then on the progress has been phenomenal. Today, almost every country in the world has earth stations linked to satellites fro transmission and reception. Communication satellites have literally transformed the modern world into what Marshall McLuhan, the Canadian media sociologist, liked to call ‘a global village’.

Edited with the trial version of Foxit Advanced PDF Editor To remove this notice, visit: www.foxitsoftware.com/shopping ass Communication Ethics & Laws 12 DTH (Direct-to-Home television In the 1970s more sophisticated transmission techniques were invented employing optical fiber cable and computer technology. Japan succeeded in designing a computer-controlled network to carry two-way video information to and from households. The audio-visual cassette and the video tape recorder, closed circuit TV, and more recently cable television, pay television and DTH Direct -to-Home television have changed the course of the development of TV in new and unexpected ways. DTH and digital compression technology has enhanced the number of channels, which can be accessed, as also the quality of picture and sound transmissions