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Jim Adney
 
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Default Why aren't computer clocks as accurate as cheap quartz watches?

On Wed, 26 Oct 2005 17:46:28 -0500 jakdedert
wrote:

wrote:
Why do the battery powered clocks in personal computers tend to keep
worse time than quartz watches, even the $1 ones?


I've often wondered the same thing...also why a $9 alarm clock will have
provision for battery backup, but $200 VCR (back when VCRs were $200)
needed to be rweset with each blip in the mains voltage.


I recently discovered that early Sony Beta VCRs (at least) actually
had back-up NiCad batteries which would keep the clock going for
seveeral minutes of blackout. I just replaced one today, with a NiMH,
and will replace a couple more in the next few days.

I'm sure I knew about these at one time, but I just forgot about them
until other things got me lnside that VCR again.

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Jim Adney
Madison, WI 53711 USA
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