Cloud computing industry is booming and companies of all sizes are increasingly moving towards public cloud after seeing the proven benefits of it.
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IaaS describes the basic pay-as-you-go model where customers lease flexible and elastic services like compute, storage, virtualization and networking building their own virtual private networks.
This gives cloud-based alternatives to on-premises infrastructure, so businesses can avoid investing in expensive on-site resources. Disaster Recovery (DR) is one of the best applications of IaaS, instead of maintaining expensive DR sites with hardware/software and waiting for disaster, it makes sense to move DR to a cloud provider for cost effective, highly scalable and flexible solutions.
PaaS is just an up layer of IaaS specially designed for application developers, so they just put efforts on software development rather than spending time in maintaining underlying hardware and its operating systems.
This service (also known as serverless) is the top growing cloud service as all you need to do is upload and maintain the application. AWS Beanstalk is just an example of PaaS service which automatically handles the capacity provisioning, load balancing, scaling and health monitoring. SiliconSt. cloud experts aid enterprises to architect, deploy and maintain their PaaS services so your teams can focus on the creative side of your app development without carrying out the tedious tasks of managing software or security updates.
Another layer on top of PaaS, is SaaS, where companies run their software as cloud application for their customers.
Users no longer require to download and install software applications onto multiple computers throughout the network. A lot of organisations are offering SaaS where some of the commonly used include Microsoft teams or Office 365 which are offered on subscription basis. As most of the software vendors are now giving the options for their applications via both mediums like on-prem or cloud, it is of innate importance to understand the differences and pros and cons before opting for any SaaS solution.