Google Earth has several versions, there is a free version and there is a paid version. The paid version of Google Earth is of course an advantage over the free version. The paid version displays data with higher accuracy and resolution. In addition you can also use a third-party GPS application for use in Google Earth paid version. Google Earth can be installed almost all operating systems, either Windows, Linux, or even Mac OS, but computer with the old hardware specifications can’t support to operate Google Earth. For minimum Windows version you have to use Windows 7, with a minimum RAM of 128 MB, and Free disk space of 400 MB, and a screen resolution of 1024×768 pixels with 16 Bit color, you can download the Google Earth Offline installer through the following link.