Before you can set up and configure a network at home or small office, you need to physically attach the hardware so the computers can communicate. This includes installing the network cards in all the computers, connecting the computers together using cables or wireless technology, installing a modem on the host computer, turning on all computers, printers, and external modems, and establishing a connection to the Internet. A home or small office network is typically a peer-to-peer network where individual computers are organized into workgroups with a host and several clients. The host is a computer on the network who shares an Internet connection with the other client computers on the network. The host computer must be turned on whenever a client computer needs to access the Internet. To join a workgroup, you can use a wizard in System properties. After you join, you can change the workgroup name to match the other ones in your network.