What are cloud services models

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Cloud computing services are typically offered under three main service models: 




 Infrastructure as a Service (IaaS): 

This is a service model in which a provider offers virtualized computing resources such as servers, storage, and networking infrastructure to customers over the Internet. Customers can use these resources to run their own applications or workloads. 
Examples of IaaS providers include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform. 

 Platform as a Service (PaaS): 

In this model, the provider offers a complete platform to customers, including operating systems, programming languages, and other tools, for them to build and deploy their applications. PaaS allows customers to focus on developing and running their applications without having to manage the underlying infrastructure. 
Examples of PaaS providers include Heroku, Google App Engine, and Microsoft Azure. 

 Software as a Service (SaaS): 

This is a model in which the provider offers applications that run on the cloud infrastructure and are accessible to customers over the Internet. Customers can use the applications without having to install or maintain any software on their own devices.  These service models provide varying levels of abstraction, with IaaS providing the most control over the infrastructure, PaaS providing a higher level of abstraction, and SaaS providing the highest level of abstraction.
Examples of SaaS providers include Salesforce, Dropbox, and Google Workspace (formerly G Suite).

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