Most commonly in houses there is a wired connection from the ISP to the wireless access point. The computers in the house are wirelessly connected to the wireless access point.
Having said that, access points that make use of 3G cellphone networks or WiMax do connect wirelessly to the internet. But that is not common yet.
Yes, you can.
Infrastructure mode requires an access point. Ad-hoc does not.
Yes, you can connect a PC wirelessly to a DSL connection. You will need a wireless access point/router and connect that to the DSL modem via USB or ethernet. Configure your PC to attach to the wireless access point/router using the wireless (802-11a,b,g) or eithernet.
An network access point is where you can wirelessly or wired (depending on the router) gain access to network capabilities it is connected to (eg. internet, domains, remote desktop). The access point when wireless has a WEP/WPA authentication key to prevent unwanted connectors from gain access to those privileges mentioned. The connection goes from the internet modem, then to router (the access point), then to the device you wish to gain network for (whether wireless or wired)
An network access point is where you can wirelessly or wired (depending on the router) gain access to network capabilities it is connected to (eg. internet, domains, remote desktop). The access point when wireless has a WEP/WPA authentication key to prevent unwanted connectors from gain access to those privileges mentioned. The connection goes from the internet modem, then to router (the access point), then to the device you wish to gain network for (whether wireless or wired)
authentication
I wireless desktop card is hardware you install into your computer so you can connect your computer to a wireless network from a router or access point.
If you mean a WEP or WPA key, that is to connect wirelessly for an internet connection. You'll need to enter the key, which you should have if the router or access point is yours.
you cant get internet without an access point.
A wireless access point! :)
it is a access point that is free to use
A USB WiFi access point is a USB device, plugged into a computer with an existing LAN connection, that provides other computers in the local area to wirelessly access the network or internet. Such a USB device can also combine other functionalities such as a Wi Fi finder into the same unit.