Camera computers for home security have developed ways of monitoring activities at home. A video registrar lets you record and store images from a webcam which starts from the detection of activity. Allows you to go back to the saved images and scan through it and view it in manual modes. Net video spy is a kind of video surveillance that lets you access your home camera from a distant place through the use of the internet. A CSSS or Computer Software Security System is a kind of device that detects motion and performs many actions once an activity is detected such as playing a recorded sound like siren. This can also record the sound of the surrounding and take a video shot. The one thing that makes this very useful is that it can even call by telephone and send an email with a message of activity.