Background: Like other digital music players, iPods can serve as external data storage devices. Storage capacity varies by model, ranging from 2 GB for the iPod Shuffle to 128 GB for the iPod Touch (previously 160 GB for the iPod Classic, which is now discontinued).
Question: In addition to playing music, what other function can the iPod perform?
Answer:<extra_id_0>.
<extra_id_0> data storage<extra_id_1>