Microsoft Azure for Beginners: Part 2 — How to Create an Azure Virtual Machine

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VMware for Beginners — Overview of vSphere: Part 1

IaaS, PaaS, SaaS and Pizza!

In previous articles, I have explained the terms IaaS, PaaS, and SaaS, but I think it is essential to repeat this briefly. The difference between Legacy (on-premise), IaaS, PaaS, and SaaS mainly concerns the extent to which you purchase the service and to what extent you are still responsible. With a Legacy service, you are entirely responsible and in control. With IaaS, you are still in control, but you no longer have to worry about the physical hardware you use; the service provider takes care of that! IT departments and network architects mainly use IaaS. PaaS services, which software developers often use, are only responsible for the data and the application settings, whereas, with SaaS (often used by end users), you are entirely unburdened. All cloud providers offer IaaS, PaaS, and SaaS services.

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