> May I ask what "regulated" means?  I'm getting a feeling from this thread
that it means that it stays steady at a certain voltage.  But I'm thinking,
if it is 5 volts, then how would it change?  I'm seeing it has something to
do with load, but I'm not quite getting it yet.

Linsey,
Regulated mean that the voltage will be what was written on the box
and the ripple is reduced to something insignificant, so you might get
5.000V with no load and 5.001V with load.
Why would a voltage change, because the resistance of electronic
equipment is variable.

>
> Sorry if this is a dumb question, but is a battery regulated? (I realized
that the battery goes down slowly over time.  But we are talking seconds
here I think, no?)

A battery will not qualify as "regulated" because
over time the voltage will become less and less. However, a battery will not
have
ripple.


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