This is a very hard question to answer because I do not know what router you are on about. Usually, most routers now will have a CD/DVD to help you set up your router.
Basically, what you really need to know when setting up your router is your internet login info, for example; name@dialbb.com. And of course the password. You can get this by phoning your internet provider.
You can use a wireless connection if you have a wireless router
a wireless modem means it has a wireless router built in. A wireless router means just a wireless router. if your modem is not wireless, you will need just a wireless router
It does not matter if you are connected through wireless or cable, your router can provide firewall protection for all of its ports on the LAN side. If your question is: Is my wireless router's firewall protecting me, although I do use it for wireless connectivity, the answer is yes. Your routers firewall protects you whether you use the wireless option or not.
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
You can use router of G or N type and the same type wireless adapter. Of course you can use wireless N adapter with G-type router and reverse.
yes
Yes.
802.11
wireless modem is called that because it has a wirelss router built in. wireless router just a wireless router. if your cable is not wireless you can buy a wireless router or a cable modem with wireless router
You can't add wireless router to your computer. You can a wireless router to your network. If you do so, it does make your network wireless. In order to use your network wirelessly you need to have wireless adapter for all your computers you want to be connected wireless.
there has been a misunderstanding between modem and router. some people use only a modem to connect wirelessly and some use a modem and a router. The fact is there are two types. first type is a modem with built in router, second is router itself. this will clear your mind. you don't have to buy a router to go online, just a get modem with router built in
to split the Internet between different computers or to make it wireless if it is a wireless router