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Article: Video Devices
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- Computer Sciences
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CopyrightCOPYRIGHT 2002 The Gale Group Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Video Devices
Video devices are peripherals added to a computer to allow it to work with video. A video capture card provides a way to input video to the computer from conventional sources such as a camera, a VCR, or a TV cable or antenna. A video output card allows video to be output from the computer to a monitor. It is also possible to get video output cards that output video via a cable that can be connected directly to a television, allowing video to be played from a computer and watched on a television.
All information stored on a computer is stored in digital form as a sequence of numbers. When video is received from a source outside the computer, such as a VCR, it is usually in ...