Video surveillance cameras are used to transmit and record video for surveillance and monitoring various locations in real time.

NVR (Network Video Recorder) is a device used for recording and storing images from surveillance cameras connected via a network (IP Cameras). These cameras send data through the IP network to the NVR, which records images and sound (if any) and stores the data on a hard disk installed within the NVR. NVR differs from DVR (Digital Video Recorder) in that DVR works with analog cameras through coaxial cables, while NVR works with IP cameras connected via a network. NVR is often used in modern surveillance systems that require remote access to data or greater flexibility in settings, as it can easily connect through the internet.

A software that manages the CCTV system or other surveillance systems which includes camera control, recording and playback, alerts and access control.