Yes, you would have to purchase a USB, PCI, or PCI-X wireless device/card.
Yes. In fact, this is the standard, intended way for a wireless router to work. ISP/Internet service DSL/Cable-----> Modem---->Router )))))) PC ---> Cable ))))) Wireless
You have to have a Ethernet or Wireless card in your PC, then you can connect via Ethernet cable or wireless.
If your computer connected to internet with a cable, yes, you can disconnect wireless.
You'd buy a wireless internet package from an internet service provider. They'd send you a wireless router, which all of your devices (PC, Laptop, PSP) can connect to.
A wireless internet card available from most wireless phone companies allows a user to access the internet anywhere a wireless signal is available.
I'm pretty sure the answer to this is "yes". I'm only stating this from personal experience, though. I have a Macbook and my mom has a PC laptop. The wireless internet router at our home is not by Apple and the wireless internet works on both of our computers.
No, because Wi-Fi is the wireless part of wireless internet.
You have to have wireless internet and then the PS3 has the ability to connect to it.
The easiest way is to use a wireless router connected to your cable modem.
MAC/PC/printer to router. Router to modem. Modem to wall/internet. Wired or wireless router is optional, same principle.
To connect to a wireless network. This is an alternative to a corded connection via Ethernet or USB.
Yes, to add Wi-Fi to your pc's Internet, it will cost extra. You will need to get this service from your Internet wireless service provider.