Monitors/Display, Video are devices used to display electronic images either in real time as they are obtained using a video camera or from a video recorder, a digital versatile disk recorder, a television, or from a digital computerized network. These monitors typically include electronic circuitry to process the composite television signal and a screen (e.g., cathode ray tube, liquid crystal or plasma display, projection sets) to display the image. Video monitors may be used for many purposes, including monitoring patient activity and displaying images during surgical, endoscopic, and fluoroscopic procedures.