Which cloud model has all hardware owned by a third party and shared among multiple tenants?

The public cloud model is characterized by its shared infrastructure, where a third-party cloud provider owns and operates all hardware, software, and other supporting infrastructure. This infrastructure is then shared among multiple tenants (organizations or users) who access computing resources over the internet. This multi-tenant architecture is a defining feature of public cloud, offering scalability, cost-effectiveness, and reduced operational overhead for users. Private cloud, in contrast, involves infrastructure dedicated to a single organization, whether on-premises or hosted by a third party. Hybrid cloud combines elements of both public and private clouds, allowing data and applications to be shared between them.