Digital Video Recorder
Digital Video Recorder,compared to the traditional analog video recorders, using hard disk video, it is often referred to as hard disk recorders, also known as DVR. It is a set of computer systems for image storage processing, It has the function of long time recording of image / voice， remote monitoring and control functions.
DVR system hardware mainly by the CPU, memory, motherboard, video card, video capture card, chassis, power supply, hard drive, connecting cable.
The main functions of the DVR include: monitoring function, video function, playback function, alarm function, control function, network function, password authorization function and work schedule function.