RADIO

                 INFORMATION ABOUT RADIO 

Communication media (Radio)  refers to the means of delivering and receiving data or information. In telecommunication, these means are transmission and storage tools or channels for data storage and transmission. The development of the radio began in 1893 with Nikolai Tesla’s demonstration of wireless radio communication in St. Louis, Missouri. Guglielmo Marconi, 25 April 1874 – 20 July 1937 was an Italian inventor and electrical engineer, known for his pioneering work on long-distance radio transmission Marconi’s first radio transmissions, in 1896, coded signals that were transmitted only about a mile (1,6 km) far. He is often credited as the inventor of radio, and he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".

 

In early period unable to transmit speech, and instead sent Morse code messages back and forth between ships and stations on the land.Gugleilmo  Marconi had started experiments of wire less communication.Dr.Lee De Forest broadcasted hi speech from radio in 31.Dec. 1906.In 1908 Dr.Forest broadcasted recoded music form the top of Eiffel. In 1897 wire less telegraph and signal co.ltd. was started.In 1919 when the Radio co operation  of America established at that time all rights of American  Marconi co. ltd . was purchased by  RCA.

A radio commercial  in the USA called a spot people in the business is a form of advertising via the medium of Radio . Airtime is purchased from a station or network in exchange for airing the commercial.The first radio commercial is credited to WEAF, New York on August 28, 1922 for the Queensbury real estate corporation. The ten minute live commercial was voiced by H.M. Blackwell, a representative of Queensbury.After radio became a mass medium during the 1920.  united states households with radio receivers , forms of financing radio and the nature of programming.

When we look at the advantage of radio A universal medium .Can be enjoyed at home,at work and while driving.You can get the  latest news and weather report or important information Find and enjoy latest music all over the world for free .Our listening skills improve and free creative help is often available.Writing skills can be developed in radio due to preparation of speech.It reduce our mental stress.

  When we look at the disadvantage of radio.Radio are close often used as background noise  and listeners may not always pay attention to the advertisements,Radio advertising is the lack of visual communication, Readers are able to  go back and read a newspaper advertisements for instance but they are unable to do this with radio advertisements. Listeners will often not even hear most radio commercials .  If they do not listen and hear them.they are typically less likely to patronize those particular business.Listeners generally dislike radio advertisements .