Ethernet is a common solution for connecting computers to the Internet and for sharing data between computers. You can use Ethernet to connect dozens of computers in an office, or simply to connect the cable modem in your home to your computer Ethernet networks vary greatly in design and complexity. You can easily integrate wireless computers, such as those using AirPort or third-party 802.11 cards, with your wired Ethernet network. Read about three simple types of Ethernet network you can create in your home or office below.