Interlacing

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Technology where images are created in two stages, for example line 1, 3, 5, etc. first. Then lines 2, 4, 6, etc. are created. In this manner the total image is developed faster. This is used in GIF and JPG files on the Internet, which allows faster retrieval of the complete image.

In early videocard design the display was refreshed using interlacing. A refresh rate of 87Hz interlaced was the same as 43.5Hz non-interlaced.

Please see module 7a.


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