"Do I need to install drivers for the laptop to recognise there is a webcam on this machine
Yes, because you did not install Windows from the Recovery Discs which contain the model-specific drivers.
Check in Device Manager because there may be other drivers you need too. Get them from Samsung's website for the UK: http://www.samsung.com/uk/support/main/supportMain.do
If you are not in the UK, click the link at bottom left of Samsung page to change country.