Question: What is wireless Internet access?
Wireless Internet access usually means you can access to Internet by connecting your computer to public hospots or wireless network that links to Internet with DSL/Cable broadband service. It's common nowadays as there is built-in wireless adapter support on majority of laptops. You can also take a look here on various wireless adapters that can be used to connect computer to wireless network.
It can also means you computer connects to Internet directly and wirelessly by subscribing to broadband wireless access service provided by ISP. This type of access is common at rural areas that are not covered by DSL/Cable broadband service.