Yes you can but you will have to get a PS2 to PS3 Adapter which has a USB cable on the end.
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I believe that the PS3 has wireless capability for controllers. If you don't have a PS3 wireless controller, then buy one at any electronics store. The wired controllers have a USB connection at the end of it.
No.
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YES
connect the wireless adapter to the ps2 controller slot
Yes, but you have hook it up.
you can't hook up a wireless control to the xbox 360 just push on the buttom on the middle that depends did you mean a 360 controller or a PC gaming controller 360 controller-yes press the connect button on front of xbox and then on controller. PC controller-no has to be xbox 360 compatible
you plug the end into the bottom of the controller
Take a controller that is appropriate for you, then find a way to hook it up to a wireless USB
If you have a PS3 then just hook it up in the usb port on the front. If you have an Xbox just hook it up in the front as well. If you have a PS2 hook it up in one of the lower controller ports. If you have any more questions I will be glad to answer them. :)
No it is not possible to hook up a PS2 controller to a PS3 without an converter. The PS3 was never designed to use PS2 controllers, and even with a converter the controller will not feature all of the functions of the PS3 controller. It may be possible to rig a PS2 controller to work without a bulky converter, but you would have to build it yourself.