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Thursday, February 7, 2013

Television

A standard television set comprises multiple internal electronic circuits, including those for receiving and decoding broadcast signals. A visual display device which lacks a tuner is properly called a video monitor, rather than a television. A television system may use different technical standards such as digital television (DTV) and high-definition television (HDTV). Television systems are also used for surveillance, industrial process control, and guiding of weapons, in places where direct observation is difficult or dangerous. Some studies have found a link between infancy exposure to television and ADHD


n its early stages of development, television employed a combination of optical, mechanical and electronic technologies to capture, transmit and display a visual image. By the late 1920s, however, those employing only optical and electronic technologies were being explored. All modern television systems relied on the latter, although the knowledge gained from the work on electromechanical systems was crucial in the development of fully electronic television.
Braun HF 1 television receiver, Germany, 1958
The first images transmitted electrically were sent by early mechanical fax machines, including the pantelegraph, developed in the late nineteenth century. The concept of electrically powered transmission of television images in motion was first sketched in 1878 as the telephonoscope, shortly after the invention of the telephone. At the time, it was imagined by early science fiction authors, that someday that light could be transmitted over copper wires, as sounds were.
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Television is an American rock band, formed in New York City in 1973. They are best known for the album Marquee Moon (1977). They have been credited as highly influential on guitar based post-punk.[2] Television was part of the early 1970s New York underground rock scene, along with bands like the Patti Smith Group, The Ramones, Blondie, Richard Hell and The Voidoids, and Talking Heads. In contrast to the Ramones' rock 'n' roll minimalism, Television's music was more complex and more technically proficient, defined by guitarists Tom Verlaine and Richard Lloyd.



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