Closed-circuit television (CCTV) systems are used for video surveillance and security purposes. They consist of cameras, monitors, and a recording device. CCTV cameras capture video footage of specific areas and send it to a monitor or recording device for viewing or storage. CCTV systems are commonly used in public areas, businesses, and homes to deter crime, monitor activity, and provide evidence in the event of an incident. Modern CCTV systems often include features such as motion detection, night vision, and remote access, allowing users to view live or recorded footage from anywhere using a computer or mobile device