In this tutorial video, I show you how to get your Mac ready for upgrading to OS X Mavericks.
OFFICIAL SPECS:
OS X 10.6.8 or later 2GB of memory (RAM) 8GB of available space
iMac (Mid 2007 or newer) MacBook Air (Late 2008 or newer) MacBook (Late 2008 Aluminum, or Early 2009 or newer) Mac mini (Early 2009 or newer) MacBook Pro (Mid/Late 2007 or newer) Mac Pro (Early 2008 or newer) Xserve (Early 2009)