The technical basis for these requirements is incompatibility with 32-bit EFI and 32-bit kernel extensions (most importantly, drivers for GPUs shipped in some older Macs).In order to prevent potentially incompatible systems from installing 10.8, the installer contains a whitelist of supported motherboard IDs.OS X Mountain Lion (version 10.8) is the ninth major release of OS X (now named mac OS), Apple Inc.'s desktop and server operating system for Macintosh computers.OS X Mountain Lion was released on July 25, 2012 for purchase and download through Apple's Mac App Store, as part of a switch to releasing OS X versions online and every year.There are three types of notifications: banners, alerts, and badges.Banners are displayed for a short period of time in the upper right corner of the Mac's screen, and then slide off to the right.Any Mac released in or after 2011, except the Mac Book, supports Air Play Mirroring.
As on i OS, Notes and Reminders became full applications, separate from Mail and Calendar, while the i Chat application was replaced with a version of i OS's Messages.
Named to signify its status as a refinement of the previous Mac OS X version, Lion, Apple's stated aims in developing Mountain Lion were to allow users to more easily manage and synchronise content between multiple Apple devices and to make the operating system more familiar.
Mountain Lion is also the final version of OS X to be developed under the supervision of then-OS X head Scott Forstall.
The icon of the application is displayed on the left side of the banner, while the message from the application will be displayed on the right side.
Alerts are the same as banners, but will not disappear from the screen until the user takes action.
Users have bypassed these limitations so that 10.8 may run with varying functionality on some officially unsupported computers.