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History of TV Free essay! Download now

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History of TV

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Downloads to date: N/A | Words: 2411 | Submitted: 27-Apr-2011
Spelling accuracy: 96.9% | Number of pages: 10 | Filetype: Word .doc

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History of TV


The television has become such an integral part of homes in the modern world that it is to imagine life without television .Television provides entertainment to people of all ages. Not just for entertainment value, but TV is also a valuable resource for advertising and different kinds of programming. The television as we see it and know it today was not always this way.
Television was not invented or created by any one person. The ideas and innovations of several people led to the invention of television.Although it is virtually impossible to say who invented television, there were significant contributions by some people in this field, because of which they have got the distinction of being called pioneers in the invention of TV.
In 1884, Paul Nipkow was the first person to create a rotating disk as a mechanical scanner, which was the chief basis of mechanical television. He conceptualized the idea of the rotating disk that was used as a scanning device to scan images. One rotation of the disk was equal to one frame on television. The picture resolution was only 18 lines and thus very poor. Whether or not Paul actually developed a working model of a mechanical television is still unclear, but what is certain is that the Nipkow disk was the very foundation of mechanical television systems.
Charles Jenkins, also known as the father of mechanical television in America. Jenkins and his association with television began in 1894, when he first described a method to electrically transmit images and pictures. By 1920, Jenkins had developed a device known as the prismatic rings, which was the main aspect of his radiovisor television kits. This invention was basically a radio that had visual capabilities and projected pictures with a resolution of 40 to 48 lines. Jenkins also started the first television station in Maryland.
John Logie Baird also used the Nipkow disk principle to invent a practical model of a mechanical television. He was the first person to succeed in transmitting live images on TV. It can be said that Baird did for British television what Jenkins did for American television. In 1925, Baird created the first televised image of a human face. For his many inventions since then, he is considered as one of the pioneers of the mechanical television system.
Alan A. Campbell-Swinton, a British engineer, came up with the idea of using cathode ray tubes in the invention of television. Although he envisaged the idea, he could not develop a working model of his ideas, which were eventually used by Vladimir K. Zworykin and Philo T. Farnsworth to create practical systems of electronic television.
Philo Farnsworth was an American inventor who was born on August ...

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