Pre-Installed MacOS: |
X 10.4.7 (8K1106) |
Maximum MacOS: |
X 10.7.5* |
Standard RAM: |
512 MB, 1 GB* |
Maximum RAM: |
2 GB |
Details: |
512 MB of RAM is installed as two 256 MB SO-DIMM modules, no slots free. *The version sold to educational institutions from August 7, 2007 to April 7, 2009 shipped with 1 GB of RAM standard. |
So, you'd need more RAM...
http://eshop.macsales.com/MyOWC/Upgrades.cfm?sort=pop&model=254&type=Memory
Then 10.6 would be the cheapest upgrade...
Snow Leopard/10.6.x Requirements...
General requirements
* Mac computer with an Intel processor
* 1GB of memory (I say 4GB at least, more if you can afford it)
* 5GB of available disk space (I say 30GB at least)
* DVD drive for installation
* Some features require a compatible Internet service provider; fees may apply.
* Some features require Apple’s MobileMe service; fees and terms apply.
Which apps work with Mac OS X 10.6?...
http://snowleopard.wikidot.com/
Other countries...
http://support.apple.com/kb/HE57
It looks like they might still have it...
http://store.apple.com/us/product/MC573Z/A?fnode=MTY1NDAzOA
Though you could use 10.5.x...
Leopard requirements/10.5.x...
* Mac computer with an Intel, PowerPC G5, or PowerPC G4 (867MHz or faster) processor
minimum system requirements
* 512MB of memory (I say 1.5GB for PPC at least, 2-3GB minimum for IntelMacs)
* DVD drive for installation
* 9GB of available disk space (I say 30GB at least)
Classic/OS9 Apps no longer supported.
http://bobskelley.com/2015/01/04/9-reasons-leopard-keeps-power-macs-real-in-2015 /
Trouble is Apple no longer sells it, check eBay & such for the Retail version, not the Gray Discs...
http://www.ebay.com/sch/i.html?_nkw=mac+os+x+leopard+retail+10.5