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Impressive level of backwards compatibility these days. Perhaps the best part about current-Apple, and I mean that in a good way. By comparison, I recently installed Windows 10 Pro on a Compaq Presario SR1010z with an AMD Athlon 64 3400+ and also on a Dell Dimension 8400 with a 3 GHz Pentium 4. Both systems were purchased in 2004.
Both had 2 GB of RAM. And both are extremely responsive and feel fast while running Windows 10. So I'd say Microsoft is still the lead in backwards compatibility.
I do like my Macs. But Apple does artificially cut off system support quite often (as illustrated by Sierra and El Capitan running on unsupported systems by editing the permitted systems list in the installer files).
Apple recently unveiled, version 10.13 of its desktop and laptop OS. When the OS is generally available in the fall of 2017, it will be offered as a free upgrade to existing Mac users through the Mac app store. Here's how you can get it. Check compatibility The first step to downloading any new OS is to make sure your machine can actually run it.
As a general rule, your machine must have 2GB of available memory and 8.8GB of available storage for the download. Your machine should also be running OS X version 10.7.5 or later. In terms of which individual machines will run the upgrade, here is of supported Macs:. MacBook (Late 2009 or newer). MacBook Pro (Mid 2010 or newer).
MacBook Air (Late 2010 or newer). Mac mini (Mid 2010 or newer). iMac (Late 2009 or newer). Mac Pro (Mid 2010 or newer).
Image: Apple 2. Download and install macOS High Sierra The macOS High Sierra download will be available through the Mac App Store. Start by clicking on the Mac App Store icon on the dock on your Mac. Once available, the link to download macOS High Sierra will likely be prominently displayed on the Featured tab in the store.
If it isn't, type 'macOS High Sierra' into the search bar at the top right, and it should be the first option available in the search results. Since the upgrade is free, it should only say Get next to the download icon, instead of listing a price. Click on Get, and it should turn green and ask you if you want to install the update.
Click Install. The download will begin, and it will alert you once it is completed. You will need to restart the machine to complete the download, and you will likely need to sign back into your AppleID as well, so have your AppleID password handy. Note: At the time of this writing, macOS High Sierra is only available in beta. Click to sign up for the beta program to access macOS High Sierra early.