I know that it the US we use 110-120 and the voltage selector should be set there. I know that other countires, or at least some others, use 220-240 and it should be set that way. I know the power supply converts the AC current to DC - 12, 5, 3.3 or soemthing like that. I have no idea how this works though.
I have read that in the US setting the selector for 220-240 would not do any damage, but the computer would not work. I have also read that in countries that have 220-240 - setting the selector to 110 could damage the computer.
I am sure that to those of you that know about these things this is a dumb question but I would appreciate an explanation. What happens when you change the switch? Does the power supply contain sepearate circuity for the different incomming voltages? Does it hav to do with the way the AC current is converted to DC?
Can anyone give a simple explanation of this?