These days, wireless routers are quite common, and most retail options out there have some wireless capability; however, there still may be times when you are without a router and need to set up a wireless network for multiple computers, iPhones and iPads, or other devices that support Wi-Fi connectivity.
To do this, all you need is a Mac with an AirPort card in it. Connect it to an available network with the Ethernet connection, and then set up a shared wireless connection with the following procedure:
Go to the "Network" system preferences.
Select the "AirPort" … Read more