photo credit: evelynishereSpotlight is a system-wide desktop search feature of Apple’s Mac OS X operating system introduced in version 10.4 on April 29, 2005. Creating a virtual index of all items and files on the system, it is a selection-based search system designed to allow the user to quickly locate a wide variety of items on the computer, including documents, pictures, music, applications, System Preferences, as well as specific words in documents and in web pages in a web browser’s history or bookmarks. It also allows the user to narrow down searches with creation dates, modification dates, sizes, types and other attributes. The feature is also available on Darwin, but only through a command-line interface.
You can find Spotlight tutorials by following the Spotlight Tag.