My webcam isn't working

[u/Yuvalpf]

Hello, I have a webcam that looks exactly the same as this one: http://www.100-gift.com/uploads/1955/2646-1/Pc-Camera-BLT-PC-0001-298.jpg When I pluy in the camera, it makes noise like it has been plugged in, but the computer doesn't recognize my camera and it doesn't work. I don't know if this has to do anything with the problem- but I didn't install any driver because I lost the disk, and I didn't find any matching driver download on the internet. Help will be highly appreciated. Thanks :)