How to Recharge Your iPhone
You must recharge your iPhone from time to time. If your iPhone acts up in any way, the first thing you should try is to give its battery a full recharge.
Plug the iPhone’s dock connector-to-USB cable into one of the USB ports on your computer, rather than into a USB port on your keyboard, monitor, or USB hub. The USB ports on your computer supply more power than the other ports.
You can use the included USB power adapter to recharge your iPhone from an AC outlet rather than from a computer.

iPhone Glossary
FaceTime
Apple software that enables users with supported mobile devices to both see and hear each other during wireless conversations.

iPhone Glossary
iCal
Apple’s personal calendar application.

iPhone Glossary
iCloud
Apple’s wireless storage and synchronization service that keeps digital information updated automatically and wirelessly without user instigation.

iPhone Glossary
iOS 5
The operating system for mobile Apple devices released in June, 2011. With iOS 5, data updates and synchronization occur wirelessly through the iCloud.

iPhone Glossary
jailbreak
Altering an electronic device to remove default restrictions imposed by the manufacturer.

iPhone Glossary
Siri
A voice-controlled personal assistant application purchased by Apple and available exclusively on the iPhone 4S.