About Windows Phone OS
Windows Phone is mobile operating system created by Microsoft. Windows Phone presented another design language, recently called Metro UI, yet later renamed to Modern.
Microsoft licenses the product to third-party hardware makers, yet keeps a stringent rundown of least requirements for the hardware it keeps running on to guarantee the best user experience.
Windows Phone 7
The announcement of Windows Phone 7 came in around February, 2010. It was later launched in October that year.
Windows Phone 7.5 Mango
The following update “Windows Phone 7.5 Mango” came around in May 2011. The update brought the regularly requested multi-tasking for third-party applications and included the updated Internet Explorer 9, Twitter incorporation and Windows Live SkyDrive.
Windows Phone 7.5 Tango
Another update named Tango, which brought down the minimum hardware requirements for the phones basically permitting Windows Phones at lower price points.