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Broadcasting is defined as: 1. To transmit (a radio or television program) for public or general use. 2. To send out or communicate, especially by radio or television.
Broadcasting is the distribution of radio, television or Internet signals to a large group of “listeners†or “viewers†(audience).
Radio is distributed using wireless transition (ultrasonic "electromagnetic radiation"). Radio (RF) signals broadcast over a large area. More recently, there has been an introduction of digital radio and direct broadcasting by satellite. Digital audio broadcasting (DAB) is audio broadcasting in which analog audio is changed to a digital signal and broadcasted on a channel in the AM or (more usually) FM frequency range.
Television is a telecommunication system for broadcasting and receiving information on moving pictures and sound.The word television come from a latin and Greek word meaning “Far sightâ€:Greek τῆλε “teleâ€,far, and Latin visio-n, sight(from video,vis –to see).
The television was not invented by just one person. It took many scientists. Therefore to track down the inventer would take a long time.
All television systems use the same fundamental idea of design, the idea of scanning an image to produce a time series signal representation. That representation is then transmitted to a device to reverse the scanning process.
Color television systems were invented and patented even before black-and-white television was working; see History of television for details.
Completely electronic television systems relied on the inventions of Philo Taylor Farnsworth, Vladimir Zworykin and others to produce a system suitable for mass distribution of television programming. Farnsworth gave the world's first public demonstration of an all-electronic television system at the Franklin Institute in Philadelphia on 25 August 1934.
Television and radio programs are distributed through radio broadcasting or cable. Regular broadcast programming occurred in the United States,[1] the United Kingdom,[2] Germany,[3] France,[4] and the Soviet Union[5] before World War II.
Broadcasting through the medium of the Internet is known as ‘webcasting’. The term webcasting was coined in the early/mid 1990s. The word webcasting is derived from ‘web’ and ‘broadcast’. A webcast uses streaming media technology to take a single content source and distribute it to many simultaneous listeners/viewers.
Virtually all the major broadcasters have a webcast of their output, from the BBC to CNN to Al Jazeera to Radio China. A notable webcast took place in July 2005. Live8 claimed around 170,000 concurrent viewers and the BBC received about the same on the day of the 7 July 2005 bombings in London.
The growth of webcast traffic has roughly doubled, year on year, since 1995 and is directly linked to broadband penetration.
Internet radio is a broadcasting service transmitted via the Internet. Not every internet "radio station" has a corresponding traditional radio station. Many internet radio stations are completely independent from traditional ("terrestrial") radio stations and broadcast only on the Internet. It is a popular service for people who have interests that may not be adequately catered for by their local radio stations (such as progressive rock, anime themed music, 24/7 stand up comedy, and others).
There are many “Business Models of Broadcastingâ€. These differ in the way broadcasting businesses are funded, such as government payments, individually donated time and energy, selling advertisements and sponsorship.
To conclude, we have found that broadcasting is a way of transmitting information to the public using different methods of distribution. We believe that different methods of broadcasting can appeal to a variety of audience due to the wide range of choices available to them. The recent popularity of the Internet in the home gives audiences a vast variety of media, including radio and television as well as global news and information.