Yes, you can connect a PC wirelessly to a DSL connection. You will need a wireless access point/router and connect that to the DSL modem via USB or ethernet. Configure your PC to attach to the wireless access point/router using the wireless (802-11a,b,g) or eithernet.
u could use a wirless reapeter, or an acess point
Either a router connection and a modem, or a USB Stick Modem.
If there is a wireless connection yes, but with nothing but them 2 no. Edit:My bad yes you can, one way connect an ethernet cord to each other!
PS3 can only get an online connection with DSL or Cable WiFi or ethernet
You will need to use an Ethernet connection in this case. Ethernet is a lot faster than a phone line. You will need a coax jack and a modem in order to have an Ethernet connection. For more convenience, you can just get an Ethernet wall jack installed if you don't have one yet, and you can just get an Ethernet cable to connect from the Ethernet wall jack to your computer, giving you a high speed internet privledge.
No, all PS2 games need a wired ethernet connection. PS2 does not have a wireless setting.
Use the Wi-Fi
Xbox Live requires an internet connection, either by wireless adapter or ethernet cable.
The role of the ethernet port on a PC is to allow internet to be connected. Without an ethernet port, there is no place for the computer to be connected to the internet.
You will need to have an ethernet card in order to use dsl or cable internet with your computer.
You will need to have an internet connection to have Xbox live. You can plug your xbox in with an ethernet.
A USB Ethernet adapter is in no means, a necessity for you to buy. However, it comes with benefits if you don't have a home based connection set up. They allow computers without Ethernets to hook up, a USB Ethernet and still have a home based connection.