generate questions: Originally, a FireWire connection to the host computer was used to update songs or recharge the battery. The battery could also be charged with a power adapter that was included with the first four generations.
What was the first type of connection used by the iPod to charge and transfer files? {sep_token} What was an alternate method of charging the iPod? {sep_token} What type of connector was originally required to upload songs or recharge the iPod? {sep_token}