iPhone® 4 Portable Genius

Glossary

3G

A third-generation cellular network that's faster than the old EDGE network, and enables you to make calls while also accessing the Internet.

802.11

See Wi-Fi

accelerometer

The component inside the iPhone that senses the phone's orientation in space and adjusts the display accordingly (such as switching Safari from portrait view to landscape view).

access point

A networking device that enables two or more devices to connect over a Wi-Fi network and to access a shared Internet connection.

ad hoc wireless network

A wireless network that doesn't use an access point.

Airplane mode

An operational mode that turns off the transceivers for the iPhone's phone, Wi-Fi, and Bluetooth features, which puts the phone in compliance with federal aviation regulations.

app

An application that is designed for and that runs on an iPhone.

authentication

See SMTP authentication.

Bluetooth

A wireless networking technology that enables you to exchange data between two devices using radio frequencies when the devices are within range of each other (usually within about 33 feet/10 meters).

bookmark

An Internet site saved in Safari so that you can access the site quickly in future browsing sessions.

cloud

The collection of me.com networked servers that store your MobileMe data and push any new data to your iPhone, Mac, or Windows PC.

cycling

Letting the iPhone battery completely discharge, and then fully recharging it again.

data roaming

A cell phone feature that enables you to make calls and perform other activities such ...