Question: what are the system requirements for mac os x yosemite?
Answer: MacBook Air (late 2008 or later)
MacBook (late 2008 aluminum or later)
MacBook Pro (mid-2007 or later)
iMac (mid-2007 or later)
Mac mini (early 2009 or later)
Mac Pro (early 2008 or later)
Xserve (early 2009)
2 GB RAM minimum (a minimum of 4 GB of RAM is recommended)