One of the most identifying characteristics of Windows Phone is Cortana, Microsoft's version of a virtual assistant that's reminiscent of Apple's Siri and Google Now. Now, however, the software giant is bringing that friendly Halo-inspired voice to the desktop as well, further unifying the experience between all of Microsoft's products. Just as early versions of Windows 10 showed, you can use Cortana on the desktop to do all kinds of things from making calls on Skype to adding appointments to the calendar.

http://www.engadget.com/2015/01/21/c...-pc-windows10/