How to tell what version of OS X is on your Apple Mac Computer.

  The Apple Operating System, called OS X, is regularly updated incrementally, rather than by a few major releases like Microsoft Windows. The most recent versions are: 10.6.x = Snow Leopard 10.7.x = Lion 10.8.x  = Mountain Lion   To tell which version you have: 1: Click on the Apple Icon in the top left…