Cloud computing lets you transfer the heavy lifting and crunching of data from your device into massive computer clusters located in cyberspace. You can access these huge computers via the Internet. This allows you to access files as well as applications and development tools from anywhere. This allows you to be more productive with your laptop on an overcrowded train, or on your smartphone on the table of a conference.

The cloud also ensures that your work remains accessible in the event that your office goes out of power. This is because it stores a copy of all your data and applications. This is the reason that some of the world’s biggest companies have moved to the cloud and have rigorously evaluated its performance and protections.

There are several different types of cloud service and deployment models. They are typically categorized into four service models: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), Software as a Service (SaaS) and Serverless/Function-as-a-Service (FaaS). Cloud computing and “cloud” are often used in conjunction. However, it is important to know the differences between IaaS, PaaS, and FaaS in order to determine which cloud deployment model is most suitable for your requirements.

In IaaS, you’re renting an entire set of hardware–servers and firewalls and storage, as well as virtual machines from a cloud service provider. This is an excellent option for companies who create special-purpose or proprietary applications which require servers to be maintained and managed however do not wish to invest time or money buying, storing, and establishing their equipment.

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