When you need to connect two or more computers together, you need to create a computer network. A network is all about sharing; you can use your network to share files, share peripherals (such as printers), and share a broadband Internet connection.
There are two ways to connect your network–wired or wireless. A wireless network is more convenient (no wires to run), which makes it the network of choice for most home users. Wireless networks use radio frequency (RF) signals to connect one computer to another. The most popular type of wireless network uses the Wi-Fi standard and can transfer data at either 11Mbps (802.11b) or 54Mbps (802.11g).