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The first device capable of recording sound signals was leon scott de martinvilles 1857 invention called the " Phonavtograph".
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By 1891 Edison expanded into the entertainment field for the next several years, material innovation improved both cylinder and disc machines, but disc-style gramophones and phonographs eventually worn out.
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Their 1905 victroia becam the industrys primiere disc phonograph, and the era of the 78 RPM disc'standard was born (homes 200)
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By the 1920's, innovation in electrical recording and amplification systems combined with the event of magnetic recording to help drive the recording industry for the next two countries.
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1940s introduced, columbia introduced the 33-1/3 PM
