We're going to need the SKU for the laptop. It should be located under your laptop via a sticker. In retrospect, the webcam is bundled with your laptop and can be seen on the top edge of your monitor screen seen as a small dot.
Are you referring to webcam drivers? What OS are you on? Windows 7? You could try and open a FB/Skype/Google Hangout chat window with your friends and see if the webcam is recognized automatically.