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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>clock</title><link rel="stylesheet" href="../../jargon.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.61.0"/><link rel="home" href="../index.html" title="The Jargon File"/><link rel="up" href="../C.html" title="C"/><link rel="previous" href="clobber.html" title="clobber"/><link rel="next" href="clocks.html" title="clocks"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">clock</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="clobber.html">Prev</a><EFBFBD></td><th width="60%" align="center">C</th><td width="20%" align="right"><EFBFBD><a accesskey="n" href="clocks.html">Next</a></td></tr></table><hr/></div><dt><a id="clock"/><dt xmlns="" id="clock"><b>clock</b></dt></dt><dd><p><span class="grammar">n.,v.</span> </p></dd><dd><p> 1. [techspeak] The master oscillator that steps a CPU or other
digital circuit through its paces. This has nothing to do with the time of
day, although the software counter that keeps track of the latter may be
derived from the former. </p></dd><dd><p> 2. <span class="grammar">vt.</span> To run a CPU or other
digital circuit at a particular rate. &#8220;<span class="quote">If you clock it at 1000MHz, it
gets warm.</span>&#8221;. See <a href="../O/overclock.html"><i class="glossterm">overclock</i></a>. </p></dd><dd><p> 3. <span class="grammar">vt.</span> To force a digital
circuit from one state to the next by applying a single clock
pulse. &#8220;<span class="quote">The data must be stable 10ns before you clock the
latch.</span>&#8221;</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="clobber.html">Prev</a><EFBFBD></td><td width="20%" align="center"><a accesskey="u" href="../C.html">Up</a></td><td width="40%" align="right"><EFBFBD><a accesskey="n" href="clocks.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">clobber<EFBFBD></td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"><EFBFBD>clocks</td></tr></table></div></body></html>