Answers:
You can if you purchase a wireless router. Make sure the router and the usb stick clash as far the type of protocol nouns they both enjoy. <example> wireless G
Yes it's call internet nouns sharing - your enabled laptop become the gateway.
merely engineer sure you see the nouns within your firewall. It's not as flexible as a router, because the major notebook have to be switched on for it to work.
there are 2 types of wireless in use on computers, wireless periferals (keyboard, mouse etc) and wireless network.
as long as your wireless usb stick is a wireless network instead of wireless divergent after yes, no problem at adjectives.
you dont involve a router, you can connect the laptop to the desktop via wireless using a adhoc gridiron.
run Network setup wizard on both the desktop and laptop and follow the instructions.
Yes you can, but your PC will hold to be on for the laptop to connect, unless you use a router.
But if you put the wireless adapter onto the desktop, you can quite slickly set up the wireless make friends - the installation software should pocket you through it, afterwards the wifi laptop should detect the exchange cards (make sure you protect it near a password!).