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Definition: iTunes


A very popular Apple application for Mac and Windows that is used to organize media on the computer, iPhones, iPads and iPods. Introduced in 2001 for Mac and two years later for Windows, more people use iTunes on Windows than they do on Macs due to the sheer number of PCs. The iTunes Store is integrated into the app for purchasing media from Apple. iTunes lets users rip CDs, burn CDs and keeps the firmware in Apple mobile devices up-to-date.

Restrictions
Apple copy protects TV shows and movies sold on the iTunes Store, and it previously protected its music. Therefore, certain restrictions apply (for details, see FairPlay).

Home Sharing
When Home Sharing in iTunes is turned on, users can stream their content to their Apple TV boxes for TV or home theater viewing. Playlists can also be opened to other iTunes users on the network, and titles can be streamed from one computer to another. Originally a "share-but-not-save" feature, in 2009, Home Sharing in iTunes 9 finally enabled users to copy files across the network, not just play them. See iPod, iTunes Match, iTunes U, media player and playlist.