Tomahawk Cruise missile

Do you know how the popular Tomahawk cruise missile works?Well,it is pretty simple.By using GPS technology.The missile is released from a ship and then when it reaches a particular altitude the fins or wings of it springs out.Infront of it is a GPS receiver which well,receives the signals from various satellites.It then positions itself with the information of the location inserted into its memory.When it reaches its destination it dives towards it and BANG!