|
iTunes ( or ) is a media player, media library, online radio broadcaster, and mobile device management application developed by Apple Inc. It is used to play, download, and organize digital audio and video (as well as other types of media available on the iTunes Store) on personal computers running the OS X and Microsoft Windows operating systems. The iTunes Store is also available on the iPhone, iPad, and iPod Touch. Through the iTunes Store, users can purchase and download music, music videos, television shows, audiobooks, podcasts, movies, and movie rentals in some countries, and ringtones, available on the iPhone and iPod Touch (fourth generation onward). Application software for the iPhone, iPad and iPod Touch can be downloaded from the App Store. iTunes 12 is the most recent major version of iTunes, available for OS X v10.7.5 or later and Windows XP or later; it was released on October 16, 2014. iTunes 12.2 adds Apple Music to the application, along with the Beats 1 radio station. This release was simultaneous with the release of iOS 8.4 and Apple Music on iPhone, iPad and iPod Touch. iTunes 12.1.3.6 was officially the last version to include support for Windows XP and Vista.〔(【引用サイトリンク】 title=iTunes 12.2 has dropped Windows Vista support )〕 ==History== SoundJam MP, developed by Bill Kincaid and released by Casady & Greene in 1998, was renamed iTunes when Apple purchased it in 2000. Jeff Robbin, Kincaid, and Dave Heller moved to Apple as part of the acquisition, where they continue to work today as the software's original developers. They simplified SoundJam's user interface, added the ability to burn CDs, and removed its recording feature and skin support. On January 9, 2001, iTunes 1.0 was released at Macworld San Francisco.〔, at Apple's September 2010 "Music" keynote, iTunes 10 was announced.〕 Originally a Mac OS 9-only application, iTunes began to support Mac OS X when version 2.0 was released nine months later, which also added support for the original iPod. Version 3 dropped Mac OS 9 support but added smart playlists and a ratings system. In April 2003, version 4.0 introduced the iTunes Store; in October, version 4.1 added support for Microsoft Windows 2000 and Windows XP. Introduced at Macworld 2005 with the new iPod Shuffle, Version 4.7.1 introduced the ability to automatically convert higher-bitrate songs to 128kbit/s AAC as these devices did not natively support audio encoded in AIFF or Apple Lossless formats, also improving the value proposition of the Shuffle's limited flash-only storage. Version 7.0 introduced gapless playback and Cover Flow in September 2006. In March 2007, iTunes 7.1 added support for Windows Vista, and 7.3.2 was the last Windows 2000 version. iTunes lacked support for 64-bit versions of Windows until the 7.6 update on January 16, 2008. iTunes is currently supported under any 64-bit version of Windows Vista, although the iTunes executable is still 32-bit. The 64-bit versions of Windows XP and Windows Server 2003 are not supported by Apple, but a workaround has been devised for both operating systems.〔http://www.planetamd64.com/index.php?showtopic=35132&st=0&p=327771&#entry327771〕 Version 8.0 added Genius playlists, grid view, and a new default visualizer. iTunes 9 added "Home Share", enabling automatic updating of purchased items across other computers on the same subnet and offers a new iTunes Store . Genius Mixes were added, as well as improved app synchronization abilities, extending the iPod Shuffle 128 kbit/s down-convert feature to all of Apple's AAC-capable devices. It also adds iTunes LPs to the store, which provides additional media with an album. Apple added iTunes Extras as well to the store, which adds content usually reserved for films on DVD and Blu-ray discs.〔(【引用サイトリンク】url=http://www.macworld.co.uk/mac/news/index.cfm?newsid=27127 )〕 Both iTunes LPs and Extras use web-standards HTML, JavaScript and CSS.〔(【引用サイトリンク】url=http://www.appleinsider.com/articles/09/09/09/apple_rivals_dvd_with_new_itunes_extras_for_movies_and_albums.html )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ITunes」の詳細全文を読む スポンサード リンク
|