Evolution of audio portable devices

  • Transitor radio

    Transitor radio
    a small portable radio receiver that uses transistor-based circuitry. Following their development in 1954, made possible by the invention of the transistor in 1947, they became the most popular electronic communication device in history, with billions[1] manufactured during the 1960s and 1970s.
  • First portable transistor radio

    First portable transistor radio
    The Regency TR-1 was the first commercially manufactured transistor radio. First sold in 1954, it was a novelty due to small size and portability; about 150,000 units were sold despite mediocre performance.
  • 8 track tape

    8 track tape
    is a magnetic tape sound recording technology popular in the United States[1] from the mid-1960s to the late 1970s when the Compact Cassette format took over
  • MiniDisc

    MiniDisc
    is a magneto-optical disc-based data storage device offering a capacity of 74 minutes and, later, 80 minutes, of digitized audio or 1 gigabyte of Hi-MD data. The Sony brand audio players were on the market from September 1992 until March 2013.
  • First hard drive mp3 player

    First hard drive mp3 player
    Is a portable consumer electronics device capable of storing and playing digital media such as audio, images, and video files.[1][2] The data is typically stored on a CD, DVD, flash memory, microdrive, or hard drive.
  • The first Walkman

    The first Walkman
    The first Walkman was marketed in 1979 in Japan, using the name Walkman. From 1980, it was known as the Soundabout in many other countries including the US,