Refurbished MacBook
I just purchased a refurbished macbook off of eBay. It currently has OS X 10.5.8. It will not sync or recognize my iPhone 5 with iTunes and from what I can find through google it's that I don't have the most current OS X available. However, when I click on "system updates" it tells me that I have the most current update available, which I know isn't true. I'm new to the MacBook world as I've only had iPhones and iPads so I'm not sure what all I need to do to get my new refurbished MacBook up to current. Thanks for the help!
MacBook, Mac OS X (10.5.8)