Software:USU (operating system)

USU
Developer	SKSS (free culture and free software)
OS family	Linux (Unix-like)
Working state	Discontinued
Source model	Open source
\|Final release\|Latest release}}	9.3 / May 12, 2016
Repository	sourceforge.net/projects/usuproject/
Marketing target	Education, End Users/Desktop
Package manager	apt
Platforms	amd64, i386
Kernel type	Monolithic (Linux)
Userland	GNU
Influenced by	Freeduc-CD
Default user interface	KDE (since USU 8.04); GNOME (until USU 7);
License	GNU GPL and others
Preceded by	Learn free with Ubuntu
Official website	learnfree.eu

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.

About USU

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 images, supporting 32-bit and 64-bit processors. The default language is Bulgarian, but in installation it can be easy changed with F2 key.

Features

USU Desktop is created to be used as a learning tool, this edition 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.

System Requirements

USU haves this approximate system requirements:

processor with working frequency ~900 MHz
minimum 384 MB RAM (512 MB if using as live CD without SWAP)
~7 GB free space on hard disk (only in installation choice)
DVD reader
monitor, with minimum resolution 640х480, for normal work - 800х600 and up.
video card, that can show at least 16 bit colors and resolution 640х480 (recommended - 800х600 and up)