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<p>In <a href="page.php?w=electronics">electronics</a> and especially synchronous <a href="page.php?w=digital_circuit">digital circuit</a>s, a <b>clock signal</b> (historically also known as logic beat) is an electronic <a href="page.php?w=logic_signal">logic signal</a> (<a href="page.php?w=voltage">voltage</a> or <a href="page.php?w=electric_current">current</a>) which oscillates between a high and a low state at a constant <a href="page.php?w=frequency">frequency</a> and is used like a <a href="page.php?w=metronome">metronome</a> to synchronize</p><p>
<a accesskey="3" href="page.php?w=clock_signal&amp;p=2">3.Next</a>
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