Windows PC:
If you’re running Microsoft Windows, you can look for your wireless network card in the operating system’s device manager. Click the search box on the task bar or in the Start Menu and type “Device Manager.” Click the “Device Manager” search result.
Scroll down through the list of installed devices to “Network Adapters.” If the adapter is installed, that’s where you’ll find it.
Mac:
If your computer is a Mac and it has a wireless card, you should see the wireless icon on the menu bar at the top of your screen. You can click the icon to turn wireless on and off or to connect to a particular network.
If you don’t see the icon and want to see your list of devices to verify there’s no wireless card experiencing difficulties, open the “System Information” screen. To do this, hold down the option key, click the Apple logo in the menu bar and click “System Information.”
If you have a wireless card, you should see “Wi-Fi” listed under network. Click it to see information about your wireless card.