Mountain Lion is almost here, arriving tomorrow on the Mac App Store. Are you ready to upgrade? First, make sure your Mac is Mountain Lion compatible.
Apple offers a list of technical specifications, so you'll be able to upgrade with confidence (although Apple says 2GB of RAM is OK, we'd recommend at least 4GB). If your Mac is from 2010 or newer, you are generally in the clear. Owners of older Macs will want to check upgrade specifics.
Purchase and download a copy of the installer from the Mac App Store. The installer should run about 4.5 GB more or less. We recommend that you copy the installer file to a safe place before you run it.
The installe
