HT201364: OS X Mavericks system requirements
Learn about OS X Mavericks system requirements
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Helpful answers
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Nov 16, 2014 8:27 AM in response to Ancient iMacby babowa,You need 2 GB of RAM (memory modules) which has nothing to do with your hard drive space (which is not memory). FWIW, that 2 GB is the bare minimum and you won't be happy with the performance - 4 GB is generally considered to be a minimum for anything beyond Snow Leopard (more would be much better).
What year/model is your Mac? Does it meet the other specs?
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by Grant Bennet-Alder,Nov 16, 2014 8:27 AM in response to Ancient iMac
Grant Bennet-Alder
Nov 16, 2014 8:27 AM
in response to Ancient iMac
Level 9 (61,130 points)
Desktops100GB is what you have available to store files. That's good, you will need it.
The requirement for at least 2GB if for RAM Memory, where programs are loaded and intermediate data are stored temporarily. 2GB is minimum, and is not enough for GOOD performance, but it will run.
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Nov 16, 2014 8:35 AM in response to Ancient iMacby Eric Root,The 2 places I’ve seen recommended most to buy reliable RAM are below. I have purchased RAM several times from Other World Computing and have always been very satisfied with the product and service. They have on-line instructions on how to replace the RAM. OWC has also tested RAM above what Apple states is the maximum. I now have 6GB installed on a machine supposedly limited to 4 GB.