No...
it is used to power things in the world we use like, computers,lamps,radios,and other things you plug in.
In this article from WIRED they say that it is all compatible, and it even compresses the 5 button GH track to 4 when you plug in a Rock Band 1 or 2 drum set. It even has MIDI outputs that will let you plug the drum set into any electric drum machine. You can even plug in a second bass pedal if you want to play two bass drums. http://blog.wired.com/games/2008/07/xbox-rock-band.html
Yes, you can use normal headphones with an electronic drum kit. All you have to do is locate the headphone output on the electronic drum module, also known as the brain and plug in the headphones. Typically, the headphone out is on the front of the drum module. I had a Yamaha DTX set and it did require a 1/4 inch headphone adapter. It's great listening to yourself play while not disturbing others around you with loud kick drums and snare beats.
Plug a plug in an outlet :)
no
In the U.S. the normal voltage for appliances (refrigerators, washing machines, lamps, microwaves, computers, televisions, etc.) is 120vac. Such things as air conditioners, electric ranges, electric clothes dryers, etc. use 240vac.
Not normally, the pins are in a different configuration.
An electric cord with prungs at the end to pug into an electrical outlet
ABS
Plug it in.
Plug it in.
Yes, I have an electric kit that I plug into my little Fender amp and it works alright. I sometimes use that when I practice and don't want to use the headphones. I wouldn't want to use it on a major gig though. Roland makes some good e-drum kit amps and I'm sure a google search would let you find others.