DVI (Digital Video Interface) is a standard used to connect digital video devices to computers. This includes DVD players, VCRs, camcorders, etc. It allows these devices to display their content on your computer monitor.
The DVI-I connector has two pins that are used to transmit data from the device to the computer. One pin carries the red/green/blue signals while the other pin carries the sync signal.
This means that if you have a DVI-I cable connected to your computer, you can plug any kind of video device into it. You just need to make sure that the video device supports this type of connection.