Can you not ask stupid questions? (no)
Yes
There is no such thing as a corded xbox 360, all 360 can use wireless controllers, even the arcade unit.
No.
yes you can
The only difference is color, so yes, you can use a regular controller with elite console
you cant
yes.
No
Yes Xbox 360 accesories such as the wireless keypad, bluetooth headset are all fuctional and compatible with and only xbox 360 system
Xbox s has wifi adapter in it the normal one you have to buy one to use wireless
Your router WILL need to be wireless to connect wirelessly to your Xbox, but you can use an ethernet cable if your router is not wireless, straight from the router to the XBOX
Use an ethernet cable and plug that in from your modem or a router then into your xbox 360