I don't know much about computer technology. I just like to turn it on, and be able to connect to the internet and surf the web.
When we switched to a wireless card for our internet connection, I learned what a WLAN adapter was.
I still don't really understand how all of it works, but do know how to troubleshoot if I am not getting a proper connection.
A WLAN USB adapter is very handy as so much of our connections today are wireless. With the popularity of wireless technology, I think this is a field that will continue to grow and expand.