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· A personal stereo audio cassette player, called
Stereobelt, was first invented by the German-Brazilian
Andreas Pavel in 1979. Sony, however, began selling
the popular Walkman in1976 (a similar device) leading
to some serious legal battles.
· Similar to its predecessor it allowed people to listen on
the go but with headphones .
· Walkman as a brand is still sold today but its products
arte very different from what Sony started with in the
DAB radio
· Digital Audio Broadcasting (DAB) is a digital radio
technology for broadcasting radio stations, used in
several countries, particularly in Europe. As of 2006,
approximately 1,002 stations worldwide broadcast in
the DAB format.
Types of radio
Pirate Radio
· Pirate radio is illegal or unregulated radio transmission for entertainment
or political purposes. While pirate just refers to the illegal nature of the
broadcasts, there have also been notable pirate offshore radio
Commercial Radio
· Commercial broadcasting is the broadcasting of television programs
and radio programming by privately owned corporate media. It was the
United States first model of radio during the 1920s, in contrast with the
public television model in Europe during the 1930s, 1940s and 1950s
which prevailed worldwide (except in the United States) until the 1980s.
Public Radio
· Public radio primary mission is public service. Public radios like the
BBC franchise receive funding from diverse sources including license
fees.…read more


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