
thumb|Discman logo used by Sony until 2000. thumb|CD Walkman logo used from 1997 until 2000. Later Sony models bear the Walkman logo. Walkman is a Sony exclusive naming. thumb|Discman D-145 (1995) thumb|CD Walkman D-E330 (2002), with Walkman logo was a brand name used by Sony for their portable CD players. The first Discman, the Sony D-50 or D-5 (depending on region), was launched in 1984. The Sony brand name for Discman changed to CD Walkman, initially for Japanese lineups launched between October 1997 and March 1998, and then entirely in 2000. Discman and CD Walkman players were discontinue
thumb|Discman logo used by Sony until 2000. thumb|CD Walkman logo used from 1997 until 2000. Later Sony models bear the Walkman logo. Walkman is a Sony exclusive naming. thumb|Discman D-145 (1995) thumb|CD Walkman D-E330 (2002), with Walkman logo was a brand name used by Sony for their portable CD players. The first Discman, the Sony D-50 or D-5 (depending on region), was launched in 1984. The Sony brand name for Discman changed to CD Walkman, initially for Japanese lineups launched between October 1997 and March 1998, and then entirely in 2000. Discman and CD Walkman players were discontinued at the beginning of the 2010s, when they lost popularity with the general public.
== Background == Prior to the development of the Compact disc, cassette tapes were the dominant form of audio storage in the then-fledgling portable audio industry. In 1979, Sony introduced the Walkman in Japan. When Sony realized the potential of the CD, the Walkman was promoted to mainstream buyers.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).