What is a significant characteristic of network video recorders (NVRs)?

Network Video Recorders (NVRs) are specifically designed to manage the storage and retrieval of video from IP cameras, which transmit digital video streams over a network. This characteristic is significant because it highlights the evolution of surveillance technologies from traditional analog systems to digital IP-based systems. NVRs allow for better scalability, flexibility, and integration with other networked devices, making them essential in modern CCTV systems. Unlike analog-based recording systems that require specific formats and connections, NVRs can handle a variety of IP cameras, thereby supporting higher resolutions and improved video quality. The ability to manage storage effectively for these streams is what distinguishes NVRs from other recording devices, especially in applications requiring high-definition surveillance and extensive storage solutions.