What is Azure?
Azure is Microsoft's operating system for the cloud, code-named , and will anchor the Azure Services Platform that Microsoft will run from its hosting data centers. Azure also is a development environment for builders of applications for the cloud.
What's with the name?
Azure is a blue color in the HSV color space, which is widely used to generate high-quality computer graphics. Blue Sky. Clouds. Get it?
So it's just an operating system?