USU (operating system) of USU includes a very long list of educational apps, like as Celestia space simulator, MuseScore music score typesetter, Blender 3D rendering software, Kalgebra mathematical calculator, and much more. USU haves this approximate system requirements: USU (operating system) USU linux (Bulgarian: УСУ; Учи Свободен с Убунту) is Bulgarian open source desktop operating system built around the KDE desktop environment and based on the popular free Linux distribution, Ubuntu. Usu can be downloaded in three flavours, Desktop, Mini and Netbook, each one with its own features and target audience. All of them can be downloaded for free, as Live CD/DVD ISO
Canaima (operating system) have been generated with several countries and manufacturing hardware companies: The most successful instances of the use and adoption of Canaima: It is a project initiated in 2009 by the Venezuelan Ministry of Education (Ministerio del Poder Popular para la Educación) that provides students in primary education with a laptop computer, known as Canaimitas, with free software, using the Canaima operating system and a series of educational content created by the Ministry of Education. In 2011, 1,314,091 laptops were acknowledged as being delivered. The national telephone company, CANTV, uses the operating system to a certain extent according to their Equipped