Infrastructure as a Service (IaaS) is a cloud computing service that provides essential IT infrastructure, such as virtual machines, storage, and network resources, over the internet. IaaS providers offer scalable and flexible infrastructure that allows businesses to access computing resources on-demand without having to invest in or maintain physical hardware. These resources are provided virtually and can be scaled quickly depending on the company's needs.
IaaS is frequently used in various scenarios, such as setting up development and testing environments, scaling web projects with variable traffic, and implementing disaster recovery solutions. It is an ideal solution for businesses that require dynamic and flexible IT infrastructure without the overhead and cost of managing physical hardware.