Some features of Mac OS X 10.5 Leopard are Time Machine, Boot Camp, Spaces and Quick Look. Apple released this version of the Mac OSX on Oct. 26, 2007, and it was the last version of the operating system to support the PowerPC architecture. Mac OS X 10.5 Leopard was available in desktop and server versions.
The Time Machine feature of the Mac OSX 10.5 Leopard keeps track of the file changes on a Mac computer by recording the changes every hour and letting users create incremental backups of their computers. In case a user wants to retrieve an older version of a file, he can open the Time Machine interface and select the date and files he wants to restore.
Boot Camp lets users of Intel-based Mac computers run the Windows operating system on Mac so they can run Windows applications. The Spaces feature lets users create multiple workspaces that contain different applications. Users can switch between these workspaces by dragging the workspace they want into the edge of the screen.
Additionally, the Quick Look feature provides users with a preview of the contents of documents. Users can click on a file, such as a word document or a video file, and press the space key to preview the content of a file.