A network usually consists of at least two computers. To be wireless, the computers should exchange information and connect to the Internet without any extra wires coming out of the computer. But even if your network consists of a single computer, being wireless has its advantages. If you're working on a desktop computer, you cut down on the clutter of wires coming and going out of your computer. If you have a laptop, you can work away from your desk and still send e-mail and connect to the Web.
You won't need much to do it. You need a wireless router, and each computer needs a wireless card so it can communicate with the router. Most new computers come with wireless cards installed, and adding one into an older computer isn't complicated. The router itself is available online, at computer stores, and in some cases from your Internet service provider.
About 30 to 45 minutes to install and set up a system
Screwdriver if installing card
Plugging and unplugging USB cables
Clear your desk.
Router, wireless card for each computer that doesn't already have one
Plug in the router and turn it on. It diagnoses your system and sets itself up largely without requiring added information. Follow the on-screen "wizard" to set up security, choose a password, and name the system. Unless your printer has wireless capability, plug the printer cable into the router.