Jul 02, 2014
By Valerie Massie
On July 2nd, 1979, Sony introduced the Walkman, the first portable audio cassette player.
Over the next 30 years they sold over 385 million Walkmans in cassette, CD, mini-disc and digital file versions, and were the market leaders until the arrival of Apple’s iPod and other new digital devices.
Source: This Day in Music