What is the iPod?
The Apple iPod is a brand of portable media players designed and marketed by Apple and launched on October 23, 2001.
The line-up currently consists of the hard drive-based flagship iPod classic, the high-end touchscreen iPod touch, the mid-level video-capable iPod nano, and the entry-level screenless iPod shuffle. Former products include the compact iPod mini (replaced by the iPod nano) and the high-end spin-off iPod photo (re-integrated into the main iPod classic line). iPod classic models store media on an internal hard drive, while all other models, aside from the Microdrive-based mini, use flash memory to enable their smaller size.
As with many other digital music players, iPods can also serve as external data storage devices.