Public Cloud in cloud computing refers to a type of cloud computing where a third-party provider offers resources like applications and storage, available to the general public over the internet.

• Public cloud services may be free or sold on-demand, allowing customers to pay per usage for the CPU cycles, storage, or bandwidth they consume.
• It provides the ability to scale elastically, delivering computing resources on-demand and at scale.

Public Cloud works by providing computing resources like servers, storage, and applications, over the internet.

• These resources are shared among all users, and resources are allocated dynamically as needed.
• Public clouds are typically based on a pay-as-you-go model, where you only pay for the resources you use.

A startup company, StartTech, uses a public cloud provider to host their web application. They choose a public cloud as it allows them to get their application up and running quickly without any upfront hardware costs. As their user base grows, they can easily scale up their resources to meet demand.