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windows phone

Windows Phone Windows Phone (abbreviated as WP) is a series of proprietary smartphone operating systems developed by Microsoft. It is the successor toWindows Mobile, although it is incompatible with the earlier platform. Unlike its predecessor, it is primarily aimed at the consumer market rather than the enterprise market. It was first launched in October 2010, with a release in Asia following in early 2011

Windows Phone 7

Windows Phone 7 was announced at Mobile World Congress in Barcelona, Catalonia, Spain, on February 15, 2010, and released publicly on November 8, 2010 in the United States. Microsoft released an updated version of Windows Phone 7, Mango (also referred to as Windows Phone 7.5), in May 2011. The update included a mobile version of Internet Explorer 9 that supports the same web standards and graphical capability as the desktop version, multi-tasking of third-party apps, Twitter integration for the People Hub, and Windows Live SkyDrive access. A minor update released in 2012 known as "Tango", along with other bug fixes, lowered the hardware requirements to allow for devices with 800 MHz CPUs and 256 MB of RAM to run Windows Phone In January 2013, Windows Phone 7.8 was released. It added some features from Windows Phone 8, such as an updated start screen, doubling of the color scheme options to 20 and the option to have the Bing image of the day as the lock screen wallpaper. Windows Phone 7.8 was intended to prolong the life of older Windows Phone 7 devices, as these were not upgradable to Windows Phone 8 due to hardware limitations. However, not all users have received the Windows Phone 7.8 update yet. Microsoft has announced that Windows Phone 7.8 will see further future updates and as both Windows Phone 7 and Windows Phone 8 will coexist for sometime, to support devices in different price ranges.

Windows Phone 8

On October 29, 2012, Microsoft released Windows Phone 8, a new generation of the operating system. Windows Phone 8 replaces its previously Windows CE-based architecture with one based on the Windows NT kernel with many components shared with Windows 8, allowing applications to be easily ported between the two platforms.

Hardware support

Windows Phone 8, while adding a number of software improvements, also brought support for updated hardware. This included support for multi-core processors and high resolution screens. Windows Phone 7 and 7.5 were often criticized for a lack of high end hardware support, but Windows Phone 8's new hardware gave Windows Phone the ability to better compete with Google and Apple smartphones. Hardware Windows Phone 7 devices have been produced by Dell, HTC, LG and Samsung. Windows Phone 7.5 devices have been produced by Acer, Alcatel, Fujitsu Toshiba (Japan only), HTC, Nokia, Samsung and ZTE. Windows Phone 8 devices are currently being produced by HTC, Huawei, Nokia and Samsung. LG and Micromax Mobile have stated their intention to produce Windows Phone 8 devices


Bluetooth

Windows Phone supports the following Bluetooth profiles:

  1. Advanced Audio Distribution Profile
  2. Audio/Video Remote Control Profile
  3. Hands Free Profile
  4. Headset Profile
  5. Phone Book Access Profile
  6. Bluetooth File Transfer (OBEX) (from Windows Phone 7.8)
  7. Windows Phone BTF support is available from Windows Phone 7.8, but is limited to the transferring of pictures, music and videos via a 'Bluetooth Share' app.

Music and videos

Xbox Music offers 30 million songs up to 320 kbit/s in DRM-free MP3 format from the big four music groups (EMI, Warner Music Group, Sony BMG and Universal Music Group), as well as smaller music labels. Xbox Video offers HD movies from Paramount, Universal, Warner Brothers, and other studios and also offer television shows from popular television networks. Microsoft also offers the Xbox Music Pass music subscription service, which allows subscribers to download an unlimited number of songs for as long as their subscription is active and play them in current Microsoft devices.

Applications and games

Third party applications and games for Windows Phone are based on XNA or a WP7 specific version of Silverlight.For Windows Phone apps to be designed and tested within Visual Studio 2010 or Visual Studio 2010 Express editions, Microsoft offers Windows Phone Developer Tools as an extension. Windows Phone Developer Tools run only on Windows Vista SP2 and later. Microsoft also offers Expression Blend for Windows Phone for free. On November 29, 2009, Microsoft announced the Release to web (RTW) version of its Visual Basic .NET Developer Tool, to allow development in Visual Basic. As it shares much of its platform, Windows Phone 8 will support the running of managed code through a Common Language Runtime similar to that of the Windows operating system itself as opposed to the .NET Compact Framework. This, along with support for native C and C++ libraries, will allow some Windows programs to be easily ported to Windows Phone 8.

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