THE HISTORY OF PORTABLE MUSIC
The world's first commercially produced transistor radio.
In February 1955 the second transistor radio, the 8-TP-1, was introduced by Raytheon. It was a larger portable transistor radio, including an expansive four-inch speaker and four additional transistors.
Tokyo Tsushin Kogyo (now called Sony), launched its first product of its kind, the TR-55 with five transistors, which had as its main selling point, the portability.
The stereo belt was the first audio cassette player.
Boomboxes were introduced commercially by various companies in the late 1970s, when stereo capabilities were added to existing designs of the radio-cassette recorder.
Walkman is a Sony brand trade name originally used for portable audio cassette.
Between 1979 -1999, Sony would celebrate by coming out with an anniversary casse Every five years since the walkman.
Discman was the product name given to Sony’s first portable CD player, the D-50, which was the first on the market in 1984
MiniDisc was announced by Sony in September 1992 as a magneto-optical disc-based data storage device initially intended for storage of up to 74 minutes and, later, 80 minutes, of digitized audio.
The SaeHan Information Systems MPMan, which debuted in Asia in March 1998, was the first mass-produced portable solid state digita audio player.
iPod is a line of portable media players designed and marketed by Apple and announced on October 23, 2001. and released on November 10. 2001.
All 6th generations of iPod
Other Major Portable Music Player of our time
Large LCD display lo play video.
OTHER MAJOR PORTABLE PALYERS OF OUR TIME
ZUNE HD: The ZUNE HD is a portable media player in the zune product family released on September 15,2009 by Microsoft.
Creative Zen: The creative Zen is a range of digital audio players (DAPs) and portable media players(PMPs) made by creative technology.
S SERIES: is the first flash based network walkman with built in active voice technology.
E SERIES: established itself as a pure mp3 player without large LCD display to play video.
A SERIES: Walkman is a digital music player available in 6(NW-A-1000) ,8(NW-A-1200) AND 20 GIGABYTE (NW-A-3000) versions and features an EL-technology screen.