We look at the evolution of the server operating system, and how the next generation is moving into the cloud

Microsoft’s new Windows Server 2016 operating system (OS) is just being launched. Linux is celebrating its 25th birthday. IBM has its mainframe operating system and its Power operating system, Oracle has Solaris – and that is just a few of the OSs that still abound in the market. But what is the role of an OS in the modern world?