Sony Corp.

Farewell, headphone jack. Apple is killing you, but we'll never forget the decades we shared

Farewell, headphone jack. Apple is killing you, but we'll never forget the decades we shared

When the Sony Walkman went on sale in 1979, music was stored on a cassette tape, power came from AA batteries and sound traveled through headphones plugged into a 3.5-mm audio jack.

Nearly 40 years later, smartphones double as personal audio players, music is stored in the cloud and rechargeable batteries are built into devices.

Sound, however, still travels through the same 3.5-mm audio jack — one of the last analog holdouts in an increasingly digital world. 

The 3.5-mm jack is a miniaturized version of technology that’s been in use since 1878, when telephone operators manning switchboards started using its quarter-inch...

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