A file server is a dedicated computer or device that stores and manages files for multiple users on a network. It allows users to access, share, and collaborate on documents and data from different devices, such as computers and smartphones. File servers can be used in various environments, including businesses, schools, and homes, to centralize data storage and improve organization. These servers typically run on operating systems like Windows Server or Linux and can support various file-sharing protocols, such as SMB or NFS. By using a file server, organizations can enhance data security, backup, and recovery processes, ensuring that important information is protected and easily accessible.