Cloud computing moves the heavy lifting of analyzing data off the device you work on and puts it in huge computer clusters in cyberspace. It is possible to access these massive computers through the Internet. This lets you access files applications, programs, and development tools from any location. This lets you perform more efficiently on your laptop while in a busy train car or on your smartphone at an office table.
It also means that in the event that the power goes out in your office, your work will be waiting for you when it turns back on as the cloud stores a backup of all your information and applications. This is the reason some of the world’s biggest companies have migrated to cloud and have thoroughly tested its performance and protections.
There are many different types of cloud deployment models and services. 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). The terms “cloud” and “cloud computing” are often used interchangeably, but it is crucial to know the distinction between IaaS and PaaS and FaaS so that you can decide which of these cloud deployment models will best suit your needs.
In IaaS, you’re renting a whole array of hardware–servers, firewalls, virtual machines and storage–from a cloud service provider. This is ideal for companies who develop specialized or unique proprietary applications that require servers to be managed and maintained but don’t wish to invest the money or time buying, storing and installing their own equipment.
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