The placement of a full-motion
video window on the
display screen. There are various techniques used to display video on a computer's screen, depending on whether the video source has been
digitized or is still in
analog NTSC format.
Since computer monitors are generally analog, NTSC video can be merged with signals coming from the video adapter. Increasingly, faster computer buses (PCI, VL-bus, etc.) and faster video busses (Advanced Feature Connector, VM Channel, etc.), allow for analog video to be digitized and stored with other binary data for output. Then the video adapter turns it into analog scan lines for the monitor.