Yes to both questions, possibly. The full answer is that it depends on the camera. With my Kodak DC4800, yes. In fact, there is also software to create a motion sensor effect, so that the camera records an image onto the computer whenever something passes into it's field of vision (or when you throw a left hook in your sleep). The software I use for these things is made for my winTV PVR card, but there is different stuff out there, just have to look for it.