To run applications ,it has to be built on some kind of platform.
For on-premises applications, this platform usually includes an operating system, some way to store data. Which is physically installed on the computer
What is Azure ? Azure is a platform Windows Azure platform is an internet-scale cloud services platform hosted through Microsoft data centers. The platform includes: Windows Azure operating system SQL Azure App Fabric
What is Windows Azure Operating System ? Windows Azure is a: cloud services operating system that allows developers to runapplications and store data: servers owned and operated by Microsoft.
How it works Microsoft Data Centers .net services SQL services Live services Windows Azure application End Users Developer
Advantages of Windows Azure 1Focus on development not infrastructure. No need to buy servers or dedicate resources to infrastructure management. Automated service management hardware failureroutine maintenance
Hardware Resources Physical Host Disk Space Network I/O CPU Virtual Machine VM Virtual Machine VM Virtual Machine VM The application
AdvantagesWindows Azure 2Respond faster to customer needs.