An expansion board that converts analog video signals to digital form and stores them in a computer's hard disk or other mass storage device. Also called video capture board, video capture card. See also expansion board. A file that contains a short video item, usually an excerpt from a longer recording. Reduction of the size of files containing video images stored in digital form.
Video compression can, however, be lossy without affecting the perceived quality of the image.
Teleconferencing in which video images are transmitted among the various geographically separated participants in a meeting. Originally done using analog video and satellite links, today video conferencing uses compressed digital images transmitted over wide area networks or the Internet. Compare data conferencing. The user can access the video driver to specify the resolution and color-bit depth of images on the monitor during the setup process. See also driver, monitor, video adapter.