Public Cloud is a well-known model of cloud computing. Here, cloud services are built using shared physical resources that are jointed together and provided in a virtualized surrounding. These services can be accessed over a public network like the Internet. In the case of public clouds, the same shared infrastructure is utilized to offer services to multiple clients.

Public clouds allow the dynamic provisioning of storage and computational services on a self-service basis via web applications and services over the Internet. Examples of the public cloud models are cloud hosting, cloud storage services, Cloud online software applications, and cloud-based development environments.