The Complete Guide to IaaS

Everything you need to know about infrastructure-as-a-service


You will be hard-pressed to come up with a technology innovation that has had more of an impact on enterprise IT than cloud computing and, more specifically, the sub-category of infrastructure-as-a-service (IaaS).

At the turn of the century, public cloud computing had advanced sufficiently for companies like Amazon Web Services (AWS) to launch, and begin popularizing the IaaS model

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Simply put, IaaS is where a big vendor – typically AWS, Microsoft or Google – provides virtualized computing resources over the Internet, instead of organizations running them on-premise. The scale of these services allows companies to essentially outsource things such as storage, compute and database, to a vendor which offers a flexible model where you only pay for what you consume.

This has allowed start-ups like Spotify, Netflix and Uber to scale their services at a staggering rate, but is also transforming traditional enterprises looking to stay up to date in the modern age, and leverage modern technologies such as machine learning.

Here we have a breakdown of the difference between IaaS, SaaS and PaaS, before diving into a detailed comparison of the big three vendors and then offer some case studies of large organizations moving towards the IaaS world.

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