I would think that it would clearly indicate that it's a wireless connection/capability, as opposed to just LAN, which indicates a wired connection capability.
Yes, it should be under Network Adapters, IMO. That's where it is on my seldom-used laptop, with the driver installed.
If no driver is installed, but the capability exists...you should have an item in Device Manager with a yellow question mark, indicating that a driver needs to be installed.
You might also check your BIOS options because...if it is disabled in the BIOS settings, it will not appear under Device Manager.
Edited by hamluis, 30 October 2012 - 06:10 AM.