on my wall at home i have a wall power socket like everyone. it has two sockets to plug things in. currently i have a board that has 6 power sockets and i plug this into one of the wall sockets. i have a computer, stereo, cellphone charger, printer etc that are always on, and i'm just wondering what is the maximum amount of power that a wall socket can give out before it over-loads.
for example, if i had two power boards each with 6 sockets which would total 12 sockets and i plugged 12 computers into them and turned them all on, will the wall socket overload?