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.
DVRs, NVRs, and TVI DVRs will all record surveillance camera footage onto a hard drive, allow you to watch your camera on a monitor or TV, and put your camera's video online so you can watch it on your computer, phone, or tablet. They only differ by resolution and what type of cameras they record.