Computer memory
not computer savy so bare with me. I have an imac 8.1 desktop, version 10.6.8, 1 GB memory, intel core 2 duo, 2.4 ghz speed. I don't have enough memory to install OS X Yosemite. I also can't import any more photos. How do I install more memory? And is it difficult? thanks
iMac (20-inch Early 2008), iOS 8.1