Yes if you already have internet service connected to something in your house you will need to add a router to split the signal between the computer or another device and the PS3
All models of the PlayStation 3 have 1 (one) 1 Gigabit Ethernet port. Plug the Ethernet cable from your modem to your PS3. You shouldn't need a router to play online. A router is design to enable multiply internet connections. E.g. 1 connection for a computer, another for a console and another for a laptop.
Both. The router makes the internet accesible to many computers/PS3's.
yes it has both WiFi and ethernet connection and can play on the PlayStation network just like every PS3.
For a wired connection you need a high speed modem. For a wireless connection you need a wireless networking adapter for your 360. Or perhaps you need a new router, as some are incompatible with the 360 console.
The wirless router brand does not matter. If you have a wireless wi-fi network you can play online with it on your PS3. So yes, you can use online features with a cisco wireless router.
no
just a ethernet cable to hook it up to your router if you do not have wireless internet available
You also need an Internet service provider (ISP) of either Broadband or DSL and a router if more than a single device is being connected with ethernet cables to the modem or a wireless router and/or modem for WiFi connection
No it can not
Well first you need a router which allows you to play online and such. (There should be a wifi area in the game if that's what your asking.)
None, all you need is a router,xbox live gold membership and a wireless adapter
No.
yes