Currently Being ModeratedJun 25, 2013 12:32 PM (in response to robinclay.rc)
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It depends. First of all, open > About this Mac, and tell us what processor your iMac has got. If it's Intel, you can use Snow Leopard at least. Then, press "More Info" and copy here "Model Identifier". It will tell us what OS X version you can run.
If you have a Intel-based iMac, buy Snow Leopard > http://store.apple.com/us/product/MC573Z/A/mac-os-x-106-snow-leopard Make a backup of your files, insert the DVD and upgrade. After that, open > Software Update, and install the most recent version.
Then, if you want, you can upgrade to OS X Mountain Lion > http://www.apple.com/osx/specs If your iMac isn't supported, see if you can run Lion > http://support.apple.com/kb/HT4949 However, Snow Leopard is still supported, so if you want, you can stay with Snow Leopard
Currently Being ModeratedJun 25, 2013 12:34 PM (in response to robinclay.rc)
It probably can be updated, but the question is to what - it depends on the exact specs of your Mac.
Go to the Apple Menu>About this Mac, copy the info regarding model/processor/RAM, etc., but blank out the serial number of your Mac, and post it here.
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