You can do plenty of things locally on your iPad without having to reach out and touch some remote site or service. You can view the time, set an alarm, make some quick calculations, jot some notes, or just play around with your iPad's settings. Nothing wrong with any of that, but I'm willing to bet you didn't fork over the bucks for an iPad just so you could play around with the Calculator app. I didn't think so. After all, the iPad was engineered from the ground up to connect. Whether it's the Web to go on a surfin' safari, the App Store or iBookstore to grab some content, or Google Maps to find your way, the iPad comes alive when it's connected to a network.
Understanding Internet Access Networks 4
Connecting to a Wi-Fi Network 9
Working with Cellular Network Connections 15
Tethering a Computer to Your iPad's Internet Connection 17
To get on the Web, your iPad must first connect to a network that offers Internet access. To make this easy and seamless, your iPad comes with internal hardware that enables it to detect and connect to available networks. Exactly how this happens and what kinds of networks your iPad can access depends on the type of iPad you own:
iPad with Wi-Fi. This type of iPad can connect only to Wi-Fi wireless networks.
iPad with Wi-Fi + 3G. This type of iPad can connect to Wi-Fi wireless ...