Clock

The system clock is used as an input to the [[sequential circuit]], alternating between \(1\) and \(0\) at regular intervals (in a clock cycle), to control when the state of a circuit changes. ¹

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1. https://courses.cs.vt.edu/_{cs1104/SystemsOrg/COrgn_9.htm#:}:text=All%20the%20circuits%20in%20the,state%20of%20a%20circuit%20changes. ↩