If you are running Mac OS X 10.4.x/10.5.x/10.6.x go to Apple menu > About This Mac > click the "More Info…" button > (the System Profiler application will open) select "Hardware" on the left and check what it says for 'Model Identifier' on the right.To be more specific and exact you can check what "Identifier" your Mac has by: To check what "model" you have the model number is usually printed on the outside of the computer somewhere.Ī. You can check "Processor", "Memory" and Mac OS X "Version" by going to Apple menu > About This Mac.Ī. How can I check what specifications my computer has or what model it is/graphics capability it has?Ī. MacBook Pro 15" (Mid/Late 2007 or newer).MacBook (Late 2008 Aluminum, or Early 2009 or newer). ![]() The following Macs are compatible with Yosemite (it's actually the same computers that were compatible with Mountain Lion - Intel Core 2 Duo, i3, i5, i7 or Xeon processor, a minimum of 2GB of RAM, 8GB of available disk space and modern graphics capability): If you never purchased/downloaded it using your Apple ID previously or your computer did not originally come with it you might, in exceptional circumstances, be able to obtain a redemption code for it from the Apple Online store.Ī.If your make originally came with it you can reinstall it by using Internet Recovery mode.If you previously purchased/downloaded it using your Apple ID go to Apple menu > App Store > Purchased and download it - if it does not appear in the list make sure it is not hidden by unhiding it.You must have purchased/downloaded it using your Apple ID previously or your computer must have originally come with it to obtain it otherwise you are most likely out of luck, sorry. Option 3: Download the Yosemite installer on one computer (at ~5GB in size) and obtain the OS X Install Disc Image to use on each computer that you want to install Yosemite on. Option 2: Download the Yosemite installer on one computer (at ~5GB in size), quit the installer and copy the installer to each computer's Applications folder that you want to install Yosemite on.Ī. Option 1: Download Yosemite individually on each computer at ~5GB in size each time.Ī. How do I install Yosemite on multiple computers?Ī. Mac App StoreĪuthorisations are unlimited whereas the iTunes authorisation limit is 10. NOTE: Mac App Store authorisations (for consumers) are different to iTunes authorisations. The iTunes / App Store accounts to authorise each computer in the family/household/business in turn toĭownload and install Yosemite (in the App Store application click on the "Purchases" tab). You can have more than one iTunes / App Store authorisation on a single machine. Do I have to buy Yosemite multiple times?Ī. In our family/household/business the different Macs have different iTunes / App Store accounts on ![]() ![]() It is a FREE download via Apple's website. It is still available to download from Apple - do not download installers from anywhere else!Ī. Yosemite was released on the 16th October 2014.
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