What is cloud computing?

The definition of cloud computing accurately describes it as a model that enables convenient, on-demand network access to a shared pool of configurable computing resources. This includes aspects like servers, storage, databases, networking, software, or analytics that can be rapidly provisioned and released with minimal management effort.

This model allows users to access computing resources over the internet, providing flexibility and scalability that traditional physical infrastructure cannot match. Users can scale their usage up or down based on need, which is a key feature of cloud computing. The emphasis on a "shared pool" highlights the resource-efficient nature of cloud services, where multiple users can utilize the same physical resources, thereby optimizing costs and efficiency.

The other options do not encapsulate the essence of cloud computing. A static platform for managing local servers does not reflect the dynamic, scalable capabilities of cloud-based services. Similarly, a set of applications installed on personal devices and software requiring physical installation illustrate traditional computing models rather than the inherently flexible and remote nature of cloud computing.