What you need to do is view your wired and wireless connections in the control panel, then change your adapters properties to share its connections with other computers. Then, setup the wireless adapter for ad-hoc and connect the computer of your choice, and viola.
WiFi
Wireless adapters (USB or not) are good for connecting to wireless networks (aka WLAN or WiFi).
for ds and ds lite get a game with wifi connection and select the wifi setup, then search for an access point on one of the three slots. You have to have wireless internet to do this, or the Nintendo wifi adapter, which is kinda crappy.
An open wifi access point is when your router can be accessed by joining with a wireless connection. This is done by not securing a router or allowing wireless connections without locking it from outside sources. Acessing a open wifi access point that doesn't belong to you is against the law and can be prosecuted.
A wireless router adapter is a plug-in peripheral card or even a USB device which lets you communicate with wireless routers or other computers to network with them. A WIFI booster is a way of boosting a weak WIFI signal to increase the range.
A wireless adapter.
You need pay only for the adapter. If you have a wireless router you will not have to pay to anybody for your WiFi. But you still have to for Internet.
i. Setting up the access point as an access point - The Access Point mode is the default setting of most Linksys wireless access points. It allows you to extend the range of an existing wireless signal by connecting the access point to a wireless router via Ethernet connection.
If the player is WiFi enabled, the wireless adapter is already built into it.
Wifi power line adapter is a much better connection than wireless to increase the speed of ps4.
you ether need a Nintendo wifi usb connector or a wireless router.
You don't. If you have the new Xbox 360, you don't need a wireless adapter because it has built in wifi. But if you have any other Xbox 360 console then you will need a wireless adapter.