WNC device is a short form for Wireless Network Card. A Wireless Network Card is a hardware device that allows your computer to connect to a wireless network. It does this by transmitting and receiving data using radio waves instead of wires.
Most laptops come with a built-in wireless network card, but you can also buy one separately and install it in your desktop computer. Once you have a wireless network card installed, you need to configure it before you can connect to a wireless network.
Configuring a wireless network card is usually done through the control panel of your operating system. You will need to know the SSID (name) of the wireless network you want to connect to, as well as the security settings (if any) that are required.
Once your computer is connected to a wireless network, you will be able to access the Internet and other resources shared on that network.