Microsoft Azure is a set of services that run in a cloud that's owned and operated by Microsoft. Microsoft Azure data centers are located in more than 50 global regions that run thousands of machines. 

Microsoft Azure includes many services as part of its cloud computing platform: 

• Compute services: Services for hosting and running applications, such as virtual machines, app services, container orchestration clusters, and high-performance batch-processing services.
• Data services: Services for persisting data, manipulating it, and retrieving it. This includes storage services for files and Binary Large OBjects (BLOBs), and databases of different kinds and for different purposes.
• Cognitive, ML, and AI: Services that enable you to add intelligence to your applications, such as computer vision, language understanding, text analysis, statistical inference and prediction, and many others.
• Networking: Enables connectivity of different machines, applications, and services with full control of security.

The list goes on and on, and it's growing every day. The main point is that for almost every requirement of your system, there's a service that can give the solution with little effort and with great power.