Closed-circuit television, or CCTV, is a system that uses video cameras to transmit signals to a specific set of monitors. Unlike regular television broadcasts, which are open to the public, CCTV is a private network. It is commonly used for security purposes, allowing businesses and homeowners to monitor their properties in real-time. CCTV systems can include various components such as cameras, monitors, and recording devices. They can be installed indoors or outdoors and are often equipped with features like night vision and motion detection. This technology helps deter crime and provides valuable evidence in case of incidents.