Il giorno 1-10-2012 15:27, Dan ha scritto:

>> It looks like electronic engineers have a different meaning for the
>> word "off" than normal people.
> 
> When shutdown, the machine still has a small draw to keep the p/s,
> PMU, part of the motherboard, and keyboard running.
It seems quite an ineffective design, keeping powered all those parts, just
to enable the boot switch.

> people love that "instant on".
That's what I thought: it's mainly for a quicker start.

> Keep in mind that if you disconnect power from the Mac, it will keep
> that PMU running anyway, using the pram battery.
Ok, it will cost less than the power consumption anyway. ;-)

> There's also the school of thought about the "jolt" of hitting a
> machine with a cold start every day.  Wear and tare on the
> components, and all that.  Personally, except for HDs, I never bought
> into that, for home-based systems at least.
Yeah, it sounds like a persistant myth; perhaps it was true many years ago.

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