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  The phonograph was one of the first audio players ever created. It was created in 1877 by Thomas Edison. This creation inspired other inventions that came later.
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  The first LPs were invented in 1948. Peter Carl Goldmark invented LPs. He was also the founder of the iconic Columbia Record Company.
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  This is a small portable radio receiver. It was released in 1954. The inventors included William Shockley, Walter Brattain, and John Bardeen.
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  Cassette Tapes were invented in 1962. They were developed by the company Phillips. It was first introduced in 1963 on live television.
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  Several different smaller inventions made the invention of the 8 track. The endless loop cartridge that is a fundamental part of the 8 Track was invented in 1952. The Stereo 8 track cartridge was created by Richard Kraus in 1963.
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  The first MP3 Player was invented in 1977. It was invented by SaeHan information systems.
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  The Walkman was a portable audio device that was created by Sony. It was released in 1979. There were around 385 million units sold.
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  The Compact Disk aka CD was created by both Philips and Sony. It was released in 1982.