Tuxedu is an Open Source operating system (OS) it and all the programs (software) it contains are Open Source but what is Open Source and why use it?
Open Source software is used in industry worldwide, NASA, Google, Facebook all use open source and it’s used in every day technology such as Android phones, cashpoint machines and set-top boxes, it is high quality software. You may already have heard of Firefox web browser, Thunderbird email and WordPress web and blogging software, all of which are enormously popular open source programs in use in homes and offices globally.
Open Source software means a program that makes its source code publicly available to use and modify it is usually free to download and distribute.
What this means is that you and your school (and indeed anyone) can freely download and use as many copies of Tuxedu as you like legally and at no expense.