You need a computer to access the internet. You need a modem, and a wireless card in your computer.
No. You need a wireless router, though you don't necessarily need a computer.
You need to change the network card in your computer with a wireless one, and buy a wireless router. Need 2 items: wireless router wireless network card
If the printer is connected to another computer via a cable, then you need something for the wireless computer to connect to. It would either have to connect to a wireless router or you could have a wireless card in the other computer and configure the two to talk to each other. But using a router is a far better solution. Then you can setup the printer as shared from the first computer and configure the two comptuers to be in the same workgroup and share it that way.
If you do not need access to internet, no you do not need that. You have to set up IP addresses manually, then you will be able to use your printer.
Yes, This is for adding a wireless antenna to a desktop or laptop computer that does not have wireless built in. You still need a wireless router connected to your internet provider.
If you want to use wireless connection yes you need a wireless adapter.
You need to have two things: a wireless router and a wireless adapter compatible with the router.
Yes, you do. Even if you are going to have only one computer connected wiressly you need to have a wireless router for that.
you don't need to now
You need a kanooter confibulatory hooked up to your computer
A wireless networking card to install within your computer, or a USB wireless adapter.