Final answer:
The application programming interface (API) is the component that mediates data exchange between the client and the underlying resource, serving as a bridge and defining the rules for requests.
Step-by-step explanation:
The application programming interface (API) component mediates data exchange between the client and the underlying resource. APIs define the proper way for a developer to request services from an operating system or other application, and expose only a specific set of functions or data while hiding the rest of the application's code.
In a client-server model, the API serves as a bridge between the client, which initiates the request for services or data, and the server, which provides the services or data.
The client and resource components in computer systems are typically connected through an Application Programming Interface (API). The API acts as an intermediary or middle layer that enables data exchange between the client and the underlying resource. It provides a set of functions, protocols, and tools that allow the client to interact with the resource in a standardized and efficient manner.