Video decoder and video decoder card What is the difference, what each use.
Video Decoder: Can the digital video signal into an analog signal and output device, typically a single path, and video encoders used in pairs. In most cases, using a video decoder and encoder use one, mainly used in the monitoring points are not too many cases. The video decoder ships operated by remote control, you can also use the keyboard to control (in the center, a keyboard to control all video decoder)
Video decoder card: features and video decoder similar, the difference is, the video decoder card is used on the computer, you need software support, the biggest advantage is: you can have the software to control the decoding and display, very flexible, and can arbitrarily extension.