The third generation began including a 30-pin dock connector, allowing for FireWire or USB connectivity. This provided better compatibility with non-Apple machines, as most of them did not have FireWire ports at the time. Eventually Apple began shipping iPods with USB cables instead of FireWire, although the latter was available separately. As of the first-generation iPod Nano and the fifth-generation iPod Classic, Apple discontinued using FireWire for data transfer (while still allowing for use of FireWire to charge the device) in an attempt to reduce cost and form factor. As of the second-generation iPod Touch and the fourth-generation iPod Nano, FireWire charging ability has been removed. The second-, third-, and fourth-generation iPod Shuffle uses a single 3.5 mm minijack phone connector which acts as both a headphone jack and a data port for the dock. COUNT 9
QSN1 In which generation did iPod start providing compatibility with USB? ANS1 third generation QSN2 What iPod feature allowed for USB connections with the device? ANS2 30-pin dock connector QSN3 Which generation of iPod Classic was the first to abandon use of FireWire in transferring files? ANS3 fifth QSN4 Starting with which generation of iPod Nano was FireWire charging functionality no longer available? ANS4 fourth QSN5 What kind of connection is provided on the iPod Shuffle for both audio output and file transfer? ANS5 3.5 mm minijack QSN6 Which generation iPod was the first to include the 30-pin dock connector? ANS6 third generation QSN7 Which model of iPod combined the headphone jack and data port? ANS7 Shuffle QSN8 What interface was gradually phased out for both charging and data transfer? ANS8 FireWire QSN9 What interface replaced FireWire in later iterations of the iPod? ANS9 USB