Microsoft Azure
How does Azure work?
Azure uses Virtualization technique and has Hypervisor in all their servers distributed in the datacenters throughout the globe.
A network switch provides connectivity to all those servers.
And one server in each rack runs a special piece of software called a Fabric Controller.
Each Fabric Controller is connected to another piece of the software known as the Orchestrator.
Orchestrator is responsible for managing everything that happens in Azure, including responding to user requests.
Users make requests using the Orchestrators Web API in the user interface of the Azure Portal.
Virtualization separates the tight coupling between a computer's hardware and operating system, using an abstraction layer called a hypervisor.
Hypervisor emulates all the functions of a real computer and its CPU in a Virtual Machine.
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