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<a accesskey="3" href="page.php?w=refresh_rate&amp;p=2">3.Next</a>
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<p>In reference to terminology originating with <a href="page.php?w=cathode-ray_tube">cathode-ray tube</a>s (CRTs), the <b>refresh rate</b>, also known as <b>vertical refresh rate</b>, <b>vertical scan rate</b> or <b>vertical frequency</b> , is the number of times per second that a <a href="page.php?w=Raster_scan">raster-based</a> <a href="page.php?w=display_device">display device</a> displays a new image. This can be independent from <a href="page.php?w=frame_rate">frame rate</a>, which describes how many images are stored or generated every second</p><p>
<a accesskey="3" href="page.php?w=refresh_rate&amp;p=2">3.Next</a>
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