History
In 1982, Sony produced the industry's first portable CD player, the D-50 also called the 'Discman'. This CD player was released just one year after the introduction of CDs on the market, and soon other companies started to release their own portable devices. One of the major problems with the early portable CD players was something called skipping. Skipping consists of the laser inside the CD player temporarily losing its place on the CD, interrupting playback. In 1993 a solution to this was introduced in the form of Electronic skip protection, which caches a few seconds of audio in memory to reduce disruption from mechanical disturbance of the laser.
Read more about this topic: Portable CD Player
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