Server
A server is a computer or software system that provides resources, data, services, or programs to other computers, known as clients, over a network. It typically runs continuously to handle requests from multiple clients, such as serving web pages, managing databases, or hosting applications. Servers can be physical hardware (like dedicated machines) or virtual instances (like cloud-based services).
Developers should learn about servers to understand how networked applications and systems operate, as they are fundamental to web development, cloud computing, and distributed systems. This knowledge is essential for building scalable, reliable services, deploying applications, and managing infrastructure in roles like backend development, DevOps, or system administration.