Microsoft Azure
Also known as: Windows Azure, Microsoft Cloud
Azure is Microsoft's cloud computing platform.
It competes directly with AWS and Google Cloud, offering similar services -- virtual machines, databases, AI tools -- but with especially deep integration into Microsoft's enterprise software ecosystem.
Microsoft Azure, explained at three levels
At home
If your office uses Microsoft Teams, Outlook, and Windows, your company's IT systems might already be partly on Azure -- Microsoft's version of cloud computing. It's where Microsoft hosts software and storage you access over the internet.
At work
Azure lets companies run applications, store data, and use AI services without buying their own servers. Organizations already using Microsoft 365 often choose Azure because everything connects with the same login (Microsoft Entra ID, formerly Azure Active Directory).
At home
Azure provides virtual machines, Blob Storage (like S3), Azure SQL Database, Azure Functions (serverless), and over 200 other services. It spans 60+ regions worldwide and supports Windows, Linux, and containerized workloads.
At work
Azure's strength for enterprises is its Active Directory integration -- teams can use the same accounts and groups for both on-premises Windows servers and cloud workloads. Azure DevOps provides CI/CD pipelines, and Azure Sentinel handles security information and event management (SIEM).
At home
Azure's global backbone includes availability zones (physically separate data centers per region), ExpressRoute for private connectivity, and Arc to manage on-premises and multi-cloud resources from a single control plane.
At work
Large Azure deployments use Management Groups and Blueprints for governance, Policy for compliance enforcement, and Cost Management for FinOps. Azure's hybrid licensing benefits (Hybrid Use Benefit) let organizations reuse existing Windows Server and SQL Server licenses in the cloud, reducing costs significantly.
Real-world examples
At home
Marcus uses Azure through his company's Microsoft 365 subscription without realizing it -- SharePoint, Teams calls, and OneDrive all run on Azure's infrastructure.
At work
Lena's enterprise migrated their on-premises SQL Server databases to Azure SQL Managed Instance, preserving SQL Server Agent jobs and linked servers while eliminating hardware refresh cycles.
Common confusions
- Azure only works with Windows and .NET — Azure fully supports Linux (it's actually the majority of Azure VMs), Python, Node.js, Java, containers, and Kubernetes. The Windows-only era ended around 2014.
- Azure is always cheaper for Microsoft shops — Azure can be cheaper for companies with existing Microsoft licenses, but pricing varies by service. A careful TCO comparison is needed before assuming savings.
For analysts
Azure Synapse Analytics combines data warehousing and big data in one service. Business analysts can query petabytes of data with familiar SQL syntax while data engineers run Spark jobs in the same workspace.
History & origin
Microsoft launched Azure in 2010, initially called Windows Azure, positioning it as a platform for .NET developers. After a slow start, Microsoft pivoted under CEO Satya Nadella to embrace open-source and Linux workloads. By 2014 the name changed to Microsoft Azure to reflect that it wasn't Windows-only. Azure is now the second-largest cloud platform globally and the primary revenue driver for Microsoft's Intelligent Cloud division.