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Video Signals

A video signal is the data that makes up the visual portion of a transmitted video/television program, for example:

A video signal can be thought of as a stream of data flowing through a path in the same way as water flowing through a pipe. Although this is not a technically accurate analogy, it is a practical one.

Note: In some systems the video and audio signals are combined together, but in most systems they are kept separate.

Common Types of Video Signal

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