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This means there are no moving parts, making the iPod nano resistant to drive failure due to sudden movement. Instead of the hard disk used by the original iPod classic, the iPod nano uses flash memory. Shortly after release, the iPod nano became the highest-selling MP3 player in history, becoming more successful than its discontinued sibling, the iPod mini. The model was updated six times since its introduction in 2005. It used flash memory, like the iPod shuffle, but with a 15-inch (2.5 inch on the 7th generation) diagonal QVGA display and the " Click Wheel" ( 1st to 5th generation) also found on the iPod classic. It was marketed as the mid-range model in the iPod family.
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The iPod nano is a series of small portable media players designed by Apple Computer (later Apple Inc.).
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