A server is a powerful computer or system that provides data, resources, or services to other computers, known as clients, over a network. Servers can host websites, manage emails, or store files, allowing multiple users to access information simultaneously. They play a crucial role in the functioning of the internet and various applications we use daily. There are different types of servers, such as web servers, which deliver web pages, and database servers, which store and manage data. Each server is designed to handle specific tasks efficiently, ensuring that users have a smooth experience when accessing information or services online.