Home computer networks are composed of three basic parts. The first is a modem. The type of modem that your network uses will depend on what type of Internet connection you are using. If you are going to be using a cable Internet connection (through your cable provider) you will need a cable modem. If you are going to be using a DSL connection (through a company such as AT&T) you will need a DSL modem. Cable modems can be purchased at just about any electronics store and even department stores such as Target and Walmart. Most DSL modems are specific to the Internet service provider. So, it is best to acquire a DSL modem from your DSL company.
The second part involved in a basic computer network is a router. There are two basic types of routers, wired and wireless. Wireless routers are more popular compared with wired routers as they allow you to create a network to be used for wireless Internet surfing. Current wireless routers have a variety of different technologies built into them. The newest technology is Wireless-N with simultaneous dual-band.
The third part involved in a basic computer network is a second computer. Because the whole purpose of a network is to connect two or more computers, a second computer is essential.