External speakers

When adding a set of 2.1 surround speakers to a PC, why doesn't it show up in the devices and printers area? Deos it have to do with the connections to the PC? If a usb device is attached it shows up in there like my headphones, webcam but if a head set uses the3.5mm jack connections as well as the 2.1 surround they don't. WHY?

Because Windows only see's the sound card. It doesn't care or make a
difference what is hooked up to it. Unlike USB devices which require drivers for proper operation.

Well then, that makes sense.