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Windows Phone 8 is the second generation of the Windows Phone mobile operating system from Microsoft. It was released on October 29, 2012, and like its predecessor, it features a flat user interface based on Metro design language. It was succeeded by Windows Phone 8.1, which was unveiled on April 2, 2014.〔(【引用サイトリンク】title=Microsoft begins sharing Windows Phone 8.1 with developers )〕〔(【引用サイトリンク】title=Windows Phone 8.1 includes universal apps and lots of feature updates )〕 Windows Phone 8 replaces the Windows CE-based architecture used in Windows Phone 7 with the Windows NT kernel found in Windows 8. Current Windows Phone 7 devices cannot run or update to Windows Phone 8 and new applications compiled specifically for Windows Phone 8 are not made available for Windows Phone 7 devices. Developers can make their apps available on both Windows Phone 7 and Windows Phone 8 devices by targeting both platforms via the proper SDKs in Visual Studio 〔Rubino, Daniel. (October 29, 2012). (Overview and Review of Windows Phone 8 )〕 Windows Phone 8 devices are manufactured by Microsoft Mobile (formerly Nokia), HTC, Samsung and Huawei.〔(Nokia, Samsung, HTC, and Huawei will have first Windows Phone 8 devices ). The Verge. June 20, 2012〕 == History == On June 20, 2012, Microsoft unveiled Windows Phone 8 (codenamed Apollo), a third generation of the Windows Phone operating system for release later in 2012. Windows Phone 8 replaces its previously Windows CE-based architecture with one based on the Windows NT kernel, and shares many components with Windows 8, allowing developers to easily port applications between the two platforms. Windows Phone 8 also allows devices with larger screens (the four confirmed sizes are "WVGA 800×480 15:9","WXGA 1280×768 15:9","720p 1280×720 16:9","1080p 1920x1080 16:9" resolutions) and multi-core processors, NFC (that can primarily be used to share content and perform payments), backwards compatibility with Windows Phone 7 apps, improved support for removable storage (that now functions more similarly to how such storage is handled on Windows and Android), a redesigned home screen incorporating resizable tiles across the entire screen, a new Wallet hub (to integrate NFC payments, coupon websites such as Groupon, and loyalty cards), and "first-class" integration of VoIP applications into the core functions of the OS. Additionally, Windows Phone 8 will include more features aimed at the enterprise market, such as device management, BitLocker encryption, and the ability to create a private Marketplace to distribute apps to employeesfeatures expected to meet or exceed the enterprise capabilities of the previous Windows Mobile platform. Additionally, Windows Phone 8 will support over-the-air updates, and all Windows Phone 8 devices will receive software support for at least 36 months after their release. In the interest of ensuring it is released with devices designed to take advantage of its new features, Windows Phone 8 will not be made available as an update for existing Windows Phone 7 devices. Instead, Microsoft released Windows Phone 7.8 as an update for Windows Phone 7 devices, which backported several features such as the redesigned home screen. Addressing some software bugs with Windows Phone 8 forced Microsoft to delay some enterprise improvements, like VPN support, until the 2014 release of Windows Phone 8.1.〔(Nokia and Windows Phone: No Match for Apple ). Wall St. Cheat Sheet. July 13, 2013〕 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「Windows Phone 8」の詳細全文を読む スポンサード リンク
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