A surveillance system is a network of cameras, sensors, and related technologies used to monitor and record activities within a specific area. These systems are commonly installed in public spaces, businesses, and homes to deter crime, detect unauthorized access, and ensure safety. Modern surveillance systems often include digital video recorders, motion detectors, and remote monitoring capabilities, allowing real-time observation and evidence collection. They play a crucial role in security strategies by helping to prevent theft, vandalism, and other unwanted incidents.