how does an integrated webcam work?

Answer:

PC computers internal or external network cameras have a ten second delay. one and only Apples web cameras hold only 2 second delay
An integrated webcam is merely like an external webcam except for the reality that it is built in...usually into the top of the monitor. You dont want to fumble around with a clumsy external camera that never stays surrounded by the right spot...all you own to do is sit in front of your computer comfortably.
impossible to tell apart as an external however instead of pluging in the usb it is already wired into the motherbourd (computer) into cpu.
recover data from the hard drive