Azure is Microsoft's Cloud computing platform.
It offers a wide range of services including computing, analytics, storage and networking.

Azure infrastructures are spread across the globe in different REGIONS targeting markets with high demand.

Each Region is divided into a minimum of 3 AVAILABILITY ZONES. This arrangement increases Fault Tolerance and reduces Redundancy.

An Availability Zone is made up of one or more datacenters equipped with independent power, cooling and networking infrastructure.

The networking infrastructures are interconnected through high speed fibre optic cables.

Resource Groups and ARM
Resources are managed and organized in Resource Groups through ARM-Azure Resource Manager.

Azure supports a wide range of services

1. Infrastructure as a service, IaaS
2. Platform as a service, PaaS
3. Software as a service, SaaS