Final answer:
According to the nomenclature of cloud computing, infrastructure as a service (IaaS) is also known as hardware as a service.
Step-by-step explanation:
IaaS provides virtualized computing resources over the internet. In an IaaS model, a cloud provider hosts the infrastructure components traditionally present in an on-premises data center, including servers, storage, and networking hardware, as well as the virtualization or hypervisor layer.
IaaS allows for automated deployment of servers, processing power, storage, and networking. It enables users to purchase resources on-demand and as-needed instead of having to buy hardware outright. It is scalable according to the needs of the user, and customers typically pay on a per-use basis.