Mac OS X Lion
Apple's Mac OS X Lion is version 10.7 of Apple Computer's flagship Mac OS X operating system for Macintosh desktop and server computers. The Lion OS release is the eighth update to Mac OS X, superceding the following earlier updates for the operating system: "Cheetah" (v10.0), "Puma" (v10.1), "Jaguar" (v10.2), "Panther" (v10.3), "Tiger" (v10.4), "Leopard" (v10.5) and "Snow Leopard" (v10.6).
Among Lion's many new features are a new dashboard interface called Mission Control, a Launchpad feature that provides instant access to your apps, new Auto Save and Versions features for protecting you from losing work, a new FileVault security feature, an upgraded Mail 5 tool, a new Resume feature, improved capabilities for finding and launching applications, enhanced support for multi-touch gestures and animations, and a new AirDrop file transfer feature that simplifies copying files wirelessly across Mac computers.
The Mac OS X Lion release made its debut in 2011 and was followed by Mac OS X "Mountain Lion" (v10.8) in July 2012.