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Blinky the Shark
 
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Default Why aren't computer clocks as accurate as cheap quartz watches?

Brad Houser wrote:

OK, so we eliminated the obvious. The typical PC crystal costs
$.25 and is accurate to 20ppm, or 1.7 sec/day, at room temp. It
gets worse at other temps.


Is there a simple relationship like slower-cooler and faster-hotter
(or the reverse) involved here, or is the relationship not that
simple?


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Blinky
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