Ocean. Vocabulary Biome: A large community of plants and animals that occupies a distinct region. Terrestrial biomes, typically defined by their climate and dominant vegetation, include grassland, tundra, desert, tropical rainforest, and deciduous and coniferous forests.
Best Answer: A DVR is just a hard drive that records the digital video signal, or converts the analog video signal to digital, and records that. You do not have to have cable.
A DVR uses analog security cameras, while an NVR uses IP cameras. The advantage of using a DVR like this is the ease of installation. Analog security cameras are plug and play, meaning once the camera is powered and plugged into the back of the DVR, it will work without needing further configuration.