No it can connect with a ethernet cable to your modem or router
Connect it to the internet with a ethernet cable from the PS2 to your router to your cable modem and then put a game disc that has on line play into the PS2
yes you need a network adaptor
If nothing else is connected to the modem you can use a ethernet cable to connect the ps2 to the modem and the internet. If you also have a PC then you need to put a router between the modem and PC and also connect the PS2 to the router which will allow both the PC and PS3 to work off the same modem
Get internet DSL or cable service purchase a router and connect the ethernet cable
You need cable or DSL internet and a router connected to your modem if you also have a PC and then just connect an ethernet cable from you router to the PS2 ethernet port that looks sort of like a large phone plug
You do not have to connect your router to your PC via ethernet cable, you can instead connect via wi-fi and your router must be connected to your hub.
ethernet
Just buy any Cat 5 or Cat 6 ethernet cable. The only concern you should have is about which length you purchase. It needs to be long enough to connect from the back of your PS2 to the Modem or router
You cannot connect a Dualshock 3 to a PS2.
Your thinking about the PS3 not the PS2. The PS2 can not connect with the PSP as they don't work together
An ethernet cord to connect the XBox to a router or the wireless adapter for XBox to connect to your wireless router.