An information server is a computer program or machine that provides access to, or retrieves, information stored on a server or other computer system. There are several synonyms or alternate names for information servers that are commonly used in the technology industry. These include data server, content server, information management system, file server, document management system, and knowledge server. Each of these names refers to the same primary function of an information server, which is to store and distribute information to users. The use of these terms might depend on the context in which they are used and the specific type of information that is being stored or accessed.