Earlier form of music players required moving parts to read enclosed data on a tape or CD whereas MP3 players use solid state memory. An MP3 player is more of a data storage device with an embedded software application that enables users to transfer MP3 files to that player. MP3 players include some utilities to copy music from CD or websites and then organize them and create custom list of songs in the order you want to hear them. Such list of songs is called a play list.
The MP3 player is the combination of various technologies and its components are not only revolutionary but also prove to be a great consumer product. If you wish to store music as well allow the user to hear the songs played and for this the player first pulls the song from its memory, then decompresses the MP3 encoding, runs the decompressed bytes through a digital to analog converter and amplifies the analog signal allowing the song to be heard.
There are different stuffs or components but these could vary as the basic parts of a typical MP3 player. This includes data port, memory, microprocessor, digital signal processor, display, playback controls, audio port, amplifier and power supply....