I have an iMac from 2007-2009 and I want to upgrade the software to improve performance.
It's running Mac OS X 10.5.8 on an Intel Core 2 Duo processor (2.66 GHz). It displays 4 GB of memory and 451.6 available GB on the harddrive.
Should I try to upgrade to Snow Leopard and then to Yosemite? Snow Leopard requires 5 GB of free hard drive disk space and 1 GB of RAM. (I don't know how much RAM I have.) Yosemite requires 5.64 GB.