The exact method differs between laptop models, but for the most part, just hold down the "Fn" button on your keyboard, and look for which function key (F1-F12) has an icon of a camera on it.
Thank you so very much for your help. I checked all the keys and didn't see a camera. I checked the device settings in the Control Panel and didn't see a camera. Then I looked very closely at the computer in bright light (since it is black it is hard to really see it) and discovered that it doesn't have a built in webcam.
I am embarrassed. It must have been my last laptop that had the camera that I shut off.
I really appreciate your fast response. I am sure that it would have worked if my computer had a built in webcam.