In surveillance systems, which device is responsible for displaying captured footage in real time?

In surveillance systems, the device that is responsible for displaying captured footage in real-time is the monitor. A monitor serves as the visual output device that enables security personnel or operators to view live video feeds from surveillance cameras. This real-time viewing capability is crucial for monitoring activities and responding to incidents as they occur.

In contrast, the other devices play different roles within the surveillance system. The recorder, such as a Digital Video Recorder (DVR) or Network Video Recorder (NVR), is primarily used to store footage for later review rather than providing live display capabilities. The camera captures the video footage but does not display it; it simply transmits the video signal to the monitor or recorder. Network devices, like routers or switches, facilitate data transfer between various components of the surveillance system but do not directly display footage. Therefore, the monitor is the essential component for real-time viewing in this context.