A client-server architecture is a computing model that divides tasks between service providers, known as servers, and service requesters, known as clients. In this setup, clients send requests to servers, which process the requests and return the appropriate responses. This structure allows for efficient resource management and centralized data storage. Typically, clients are devices like personal computers or smartphones that access services over a network, while servers are powerful machines that handle multiple requests simultaneously. This architecture is widely used in various applications, including web services, email, and database management, enabling seamless communication and data sharing.