In the fundamental building blocks of cloud computing resources, IaaS takes the physical computer hardware to build a virtual infrastructure to utilize the resources. You can create, reconfigure, resize, or remove any of the virtual resources in the data centers within a few moments and monitor them remotely.

IaaS is the most flexible cloud computing model and allows you to automate deployment of servers, process power, storage, and networking. In this service model, you don't have to purchase any hardware as the virtual ecosystem is already available and provided by the vendor. Amazon Web Service (AWS), Microsoft Azure, and Google Compute Engine (GCE) are a few examples of well-known IaaS providers.