A computer server is a powerful computer designed to manage network resources and provide services to other computers, known as clients. Servers can host websites, store files, or run applications, allowing multiple users to access shared data and resources over a network. They typically have more processing power, memory, and storage than regular personal computers. Servers can be physical machines or virtual instances running on cloud platforms. They often operate continuously to ensure availability and reliability. Common types of servers include web servers, file servers, and database servers, each serving specific functions to support various applications and services.