Deals and Reviews on Camera, Surveillance Systems and Video Surveillance

Is there a way to have a MacBook take a security video all day ?

I saw on a tv show that this girl took a video of her kitchen all day long with her MacBook. She got to look at the video from another computer that had Wi-Fi or something? Does anyone know if you can do this? If you can, how? I need to take a "security video" of my room.