Final answer:
Association is the process by which a wireless device connects to an AP (access point) in order to gain Internet access. It includes network approval and, if necessary, authentication.
Step-by-step explanation:
The process of a wireless device gaining Internet access through an AP (access point) is known as association. When a device connects to a wireless network, it first performs a search for available networks. Once the desired network is chosen, the device attempts to 'associate' with the network's AP. This association process involves the network approving the device's request to join and may require authentication, like a password. After a successful association, the device can communicate with the AP to send and receive data, thus gaining access to the broader Internet.