demaOS is the first open source web operating system Italian. This operating system can be used on the official website demaos.org or on a personal server. Among the principal applications there are: * File Manager, to manage the files; * Documents and Notepad, to open or edit text files; * Calculator, to perform operations; * Mail Client, to read mails; * Sysmon, to monitor the functions of demaOS; * Apps Center, an application that includes 29 other external apps; * Calendar, to manage its commitments; * TV, to watch television; * Game, a simple game based on mastermind; * Chat, to communicate with their friends in the network;