Apple Mac OS X Version 10.5 Leopard

Product Features
* Introduces over 300 new and enhanced features to OS X, including a new desktop and updated finder enabling easy browsing and sharing between multiple Macs
* Take advantage of the latest developments in processor hardware with full native 64-bit support, multi-core optimization, and new Core animation
* Preview files without opening an application using Quick Look
* Easily and automatically back up and restore lost files or a complete Mac with Time Machine
* Create groups of applications and instantly switch between them with Spaces
Desktop. A neat place to work.
From the menu bar to the stunning new Dock, the Leopard desktop isn’t just about design. It’s about enjoying the time you spend on your computer and getting more out of it.
An eye-opening experience.
Start from the top. The menu bar hovers transparently above your workspace, letting the desktop image - perhaps a favorite from your iPhoto library - take center stage. Dock icons rest on a reflective floor with a bright active application signal. And the look of Leopard extends to all applications: Every window has a consistent design theme, and active applications are even more distinct, casting deeper shadows.
Stacked in your favor.
Take a look at your desktop. Is it cluttered with files you downloaded or saved there (somewhat less than) temporarily? You’re not alone. Everybody does it. Time to clean house with Stacks - a brand-new feature in Leopard. Create Stacks from anything you want to access quickly from one place: a handful of documents, a group of applications, an entire folder. Files you download in Safari or save from an email are automatically directed to a Stack in the Dock, and when the download is complete, the Stack signals that a new item has arrived. When you want to see the files in a Stack, all you have to do is click - Stacks spring open from the Dock in an elegant arc for a few items, or in an at-a-glance grid for more. Pretty neat.