In North America 120/240 is the main voltages used. It is known as a three wire system. L1 to L2 supplies 240 volts. L1 to N supplies 120 volts and L2 to N supplies 120 volts.
Giant rats can commonly be found in sewers and drainage systems throughout the city. These are common homes for them as they are secluded from humans.
+12V, -12V, +5V, -5V, +3.3V
There is no list in the question! But I think that laser printers (colour or mono) are not commonly found in homes. The commonest printers are the inkjets that print in colour using coloured ink cartridges. Personally, I prefer my mono laser printer that uses a black toner.
Not typically, they feed on plant juices etc. and are not commonly found inside homes.
230 volts
The commercial voltage in Taiwan is 110V. The frequency of this voltage that is supplied to homes and other places is 60Hz.
We deliver power on the power grid as an AC voltage. That's alternating current, and that's what is available in your home.
concrete and wood concrete is commonly used and bricks are not commonly used.
Aphrodite, the Greek goddess of love, is commonly found in Greek mythology. She and the other gods and goddesses can be found in their homes on Mount Olympus - unless they are down on Earth to seduce someone or otherwise interfere with the lives of humans.
Its arbitrary AND situational ... but most commonly means any voltage above 600 volts.
Power supplies are normally units that adapt the incoming current from a "mains" source and convert it to a lower (regulated) voltage that can be used by an appliance. They are commonly found in computers, charger units, low voltage lighting systems etc.
Ac voltage