The iPod is a line of portable media players designed and marketed by Apple Inc. The first line was released on November 10, 2001, its most recent redesigns announced on September 12, 2012. There are four current versions of the iPod: the ultra-compact iPod Shuffle, the compact iPod Nano, the touchscreen iPod Touch, and the hard drive-based iPod Classic. Like other digital music players, iPods can serve as external data storage devices.
