Microsoft CEO Satya Nadella has confirmed that the his company will amalgamate all major versions of Windows into one operating system. Speaking on the companys quarterly earnings call today, Nadella told analysts Microsoft will streamline the next version of Windows from three operating systems into one single converged operating system. Describing the implications of the change, Nadella said this means one operating system that covers all screen sizes. Previously, under the management of Steve Ballmer, Microsoft had multiple teams producing different versions of Windows working separately from each other. Now, Nadella said, we have one team with a common architecture. The Microsoft boss noted the benefit for users and developers — while Microsoft will still sell different editions of Windows, the new unified platform will allow the creation of universal Windows apps that work across all devices running the OS.