The last time Sony was worth this ... TV in 1968 to the Walkman cassette player in 1979 to the world’s first CD player in 1982, in addition to numerous cameras and video recorders.

A 1/8" inch ... user manually removes the cassette and flips it over. In 1979, Sony introduced the Walkman, a small, lightweight and belt-worn audio cassette player that let a person comfortably ...