Timeline: The Evolution of the Music Player

Nov 23, 1889

First Coin-Operated Phonograph Installed in Palais Royale

http://www.madehow.com/Volume-5/Jukebox.html
It was installed by Louis Glass in a saloon in San Fransisco.

Nov 1, 1954

Transistor Radio Released

http://www.vintageradios.com/a-brief-history-of-the-transistor-radio/
Texas Instruments and Industrial Development Engineering Associates worked together to create the first commercial transistor radio.

Mar 8, 1965

CD Invented

https://www.voices.com/resources/articles/audio-recording-technology/cd-history-timeline
An American named James Russel was first to introduce optical digital recording and playback.

Apr 1, 1979

First Portable Cassette Created

http://designobserver.com/feature/keith-richards-and-his-amazing-portable-cassette-recorder/22878/
The first portable cassette player was released by Sony.

Jul 1, 1979

SONY WALKMAN TPS-L2 Released

http://content.time.com/time/nation/article/0,8599,1907884,00.html
The item was a 14 ounce, blue, and silver cassette player complete with large buttons and a leather case. It also came with a pair of headphones and had a second headphone jack that allowed two people to listen at once.

Oct 1, 1982

First CD PLayer Reached Market

http://www.ehow.com/about_4673943_was-first-cd-player-invented.html
Sony, Philips Electronics, and Polygram collaborated in order to design the first CD player. It was invented 2-3 years before it reached the market, and was highly successful despite competion because of the extermely low price it was soled for.

Jun 1, 1984

SONY DISKMAN Marketed

https://blog.sony.com/2011/12/flashbackfriday1984/
It was introduced shortly after the introduction of the CD player, and wass the first ever portable CD player. It was extremely compact but only wayed 590g.