The public cloud model is the most recognized model of cloud computing to several consumers that offers services in a virtualized environment. The pool of shared physical resources is used to build the physical resources and the environment can be accessed over a public network that is internet.
Public cloud is similar to a private cloud where the pool of underlying computing resources is restricted and creates a distinct cloud platform that is accessible to only a single organization. Services are offered to multiple clients with the same shared infrastructure.
Private individuals that require low level of infrastructure and security used public cloud extensively. Enterprises too can use public cloud as it makes their operations more efficient. For example, they can store non-sensitive content, webmail and online document collaboration.