How to Install a Wireless NIC Card

If you're setting up a wireless local area network (WLAN), each of your workgroup computers will need a wireless network interface card (NIC). These cards typically install inside the computer in an expansion slot. Once all of your computers have the proper equipment installed, you'll be able to share files, printers and a broadband Internet connection without having to string Ethernet cables throughout your home or office. 

Most newer laptops come with a wireless NIC already installed, so you will probably only need to upgrade your desktop computers to complete your WLAN.

This article will help you to install a wireless NIC card on your desktop