If you're using a Mac notebook computer, plug it into AC power. It takes time to download and install OS X, so make sure that you have a reliable Internet connection. Time Machine makes it simple, and other backup methods are also available. Make a backupīefore installing any upgrade, it’s a good idea to back up your Mac. If your Mac isn't compatible with OS X Yosemite, the installer will let you know. To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . Xserve models introduced in early 2009 Mac Os X Yosemite Installer Mac Pro introduced in early 2008 or later Mac mini introduced in early 2009 or later MacBook Pro introduced in mid 2007 or later MacBook Air introduced in late 2008 or later

MacBook introduced in 2009 or later, plus MacBook (13-inch, Aluminum, Late 2008) Your Mac also needs at least 2GB of memory and 8GB of available storage space. You can upgrade to OS Yosemite on any of the following Mac models. Yosemite, Mavericks and Mountain Lion can all be seen here.

On a computer running OS X Yosemite it is possible to see versions of Mac OS X in the Mac App Store. OS X Yosemite Simulator by matei-bratu OS X Yosemite Simulator by sardiniangale OS X Yosemite Simulator TV Version by ibradley2334 OS X Yosemite Simulator remix by ellistomas Mac OS X Sierra (10.12.0) by -Apple-Inc Mac OS X 10.7 by PigVenomPV OS X Yosemite X Kirby Simulator by honnybean Mac OS Simulator by ownh What a mac does.

Os x yosemite mac os