DVRs are now being used in areas like surveillance and entertainment. DVRs have managed to get a good response from the market and the future will see DVRs being employed in new areas like weather forecasting and ship to shore communication.
DVR cards
A DVR card looks quite similar to the common computer video card in many PCs. However, when it comes to functioning, there are a lot of differences between them. DVR cards come with software that can be used to display and record information from multiple cameras at the same time. These are installed in computers to allow them to function as digital video recording (DVR) systems.