One of the fastest growing ways to access the Internet is to use a wireless connection. Wireless cards come built into many computers or can be plugged into one of the slots on many machines. Regardless of which device you use, wireless connectivity allows you to move about a room or even a building and still be connected to the Internet.
There are many types of wireless devices. Many use acronyms and have unique names, but each offers wireless connection at a variety of speeds and distances. They can allow you to connect to the Internet from ranges of 30 feet to 30 miles away from an access point.
A wireless diagram explains how WiFi works to connect many devices to the Internet wirelessly.