A wireless adapter is not included in the standard xbox package.
Wireless adapters are usually available at any store that sells wireless equipment. Some that come to mind are Best Buy, The Apple Store, or the AT&T Phone store. You could also check with Radio Shack.
Yes all xbox 360s come with one white wireless controller except on the elite which has one black wireless controller instead
Nowadays most of computers come with wireless adapters but it is an extra option and you need to pay for it. You always can check presence of wireless adapter by going to Device Manager->Network adapters.
The Xbox come with the cables and a wireless controller
yes
Set up a network buy installing a router. From the router you will need network adapters for all the computers using the wireless connection. Most of these materials come in a package you would need to buy to set up wireless. An alternative to routers, access points allow wireless networks to join an existing wired network.
Most laptops today come with an integrated wireless card. If you do need a separate one, PCMCIA or USB wireless adapters are available starting at $10-$20.
They don't come with it but they do come with a cable to hook it up to a modem, or if you have a wireless connection, you can buy an adapter at a local Microsoft retailer and connect it to wireless internet.
No, laptops come without wireless routers. You have to purchase it separately. Unless you have purchased a wireless router as a part of your laptop package (you can do that, for instance, when you buy from dell).
That depends on if you buy it as a deal package, if you do, the price of kinect/the xbox is reduced due to the deal.
idk if ur trying to say xbox or xbox 360, but the best adaptors for the xbox come from the wildcat brand...hope this helps:)
cuz they suck