The public cloud is one of the cloud computing deployment models: it provides IT infrastructure and services via the internet. As a result, it offers users computing power, storage space, infrastructure, and applications without the need for their own hardware investments. Companies can use these services flexibly, avoiding high initial costs.
Public clouds offer services such as SaaS (Software as a Service), PaaS (Platform as a Service), and IaaS (Infrastructure as a Service). These services are accessible to many users via the internet. The public cloud is also characterized by flexibility: customers can adjust services as needed, as the cloud can quickly adapt to changing requirements and offers high scalability.
The pricing structure is also of interest to customers. They only pay for services actually used, as billing models are based on consumption or are subscription- or advertising-funded. Another feature of this cloud computing deployment model is self-service access: users can book or adjust services directly. Online payments and flexible contract terms are standard. Despite shared use, customer data and resources are securely separated from one another. Providers use virtualization to increase efficiency and reduce costs.
The deployment model differs from the private cloud in that it is accessible to the general public. A private cloud is available exclusively to one organization and is operated either internally or by a service provider solely for that organization.
Legal data protection regulations or security concerns may restrict the use of the public cloud. In such cases, using a private or hybrid cloud is advisable: the latter offers a combination of both models and enables access to both public and private cloud services.
Overall, the public cloud offers a cost-effective and flexible way to use IT resources while simultaneously being protected by professional security measures.
