105%20Chapter%2012 - Chapter 12: The Electronic Media...

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Chapter 12: The Electronic Media During the 450 years that followed the invention of printing, the printed word was dominant. * Telegraph: Used electricity to send and receive messages – Samuel Morse in 1844 – “pulses.” -- Large numbers of trained operators (code and encode) -- Capital ($) to put up poles and wire -- Couldn’t be used at sea or geographically remote areas. There was a demand for better methods of communications = “PULLED” * Radio: Maxwell and Hertz – electrical waves traveled at speed of light. -- Marconi given credit, but a host of other helped, i.e Oliver Lodge = tuning a receiver to receive signals of specific wave length. -- Diode = invented by John Ambrose fleming in 1904. Lee deforest invented a much more workable device. -- Radio = seen as wireless telegraph: ship to shore, messages sent across oceans; military forces in WWI, = Enthusiastic amateurs experimented and improved it. -- In 1920, November 2, the first radio station – KDKA – was on the air giving up to the minute info about the presidential elections to several hundred people. -- Westinghouse and General Electric set up stations. -- As you might expect … Commercials started. Companies sponsor programs to get advertisements. * Rise of Television -- Radio could only reach one of the senses -- People had conceived of pictures going through the air into homes The English magazine “Punch” showed just this in a cartoon. Also, a French artist drew illustrations of a T.V. -- A “mechanical” TV system was invented first. -- Then Vadimir Zworykin, a Russian Émigré in 1928 produced the FIRST WORKABLE ELECTRONIC TELEVISION CAMERA. = He called it an “Iconoscope;” it was a major accomplishment. -- An Idaho farmboy presented his high school science teacher with plans for a workable television system. His notes would later, in court, prove that he was the FIRST with the plans of a work- able concept and he is considered one of the Fathers of T.V. -- In 1939, The Radio Corporation of America (RCA) begtan regular\ broadcasts to a few thousand viewers on a 5-inch screen with dim pictures. 1
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* The Federal Government Steps In -- Military contracts stimulated a great deal of useful research. Nationa l Security was invoked to unify the radio industry. -- In 1934, Congress created the FCC (Federal Communication Commis-
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This note was uploaded on 01/24/2011 for the course HSS 105 taught by Professor Anthonyprincipe during the Spring '09 term at Tri - County Technical College.

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105%20Chapter%2012 - Chapter 12: The Electronic Media...

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