Setting Up and Using Networks 77Wireless Local Area Network (WLAN)A WLAN is a series of interconnected computers that communicate witheach other over the air waves rather than through a network cable connectedto each computer. In a WLAN, a radio communications device called anaccess point or wireless router connects network computers and providesnetwork access. The access point or wireless router and the wireless networkcard in the computer communicate by broadcasting data from their antennasover the air waves.What You Need to Establish a WLAN ConnectionBefore you can set up a WLAN, you need:• High-speed (broadband) Internet access (such as cable or DSL)• A broadband modem that is connected and working• A wireless router or access point• A wireless network card for each computer that you want to connect toyour WLAN• A network cable with the network (RJ-45) connectorChecking Your Wireless Network CardDepending on what you selected when you purchased your computer, thecomputer has a variety of configurations. To confirm that your computer hasa wireless network card and to determine the type of card, use one of thefollowing:• The Start button and the Connect To option• Your order confirmationStart Button and Connect To OptionIn Microsoft Windows XP, click Start→ Connect To→ Show all connections.NOTE: If your computer is set to the Classic Start menu option, click Start→Settings→ Network Connections to view your network connections.In Microsoft Windows Vista, click the Windows Vista Start button →Connect To→ View network computers and devices.
