First introduced in the 1960s, the audio cassette (a.k.a. tape) was a small, portable magnetic sound-recording device that became a popular way to listen to music in the 1980s and 1990s. Whether you bought prerecorded albums or made your own "mix tapes," everyone was playing tunes at home, in the car, or even walking down the street with a boom box in hand. The cassette was the primary way to listen to music until it was overshadowed by CDs in the 1990s. The tapes were discontinued by major music labels in 2005. Though still produced in China, they’ve become an archaic technology for most of the music-loving market.