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Meet the GNU contributors in person at the GNU Hackers' Meeting!

The 8th GNU Hackers' Meeting takes place in Munich, Germany from 15–17 August 2014. It spans three days, and comprises talks about new GNU programs, status of the GNU system and news from the free software community.

Register now to secure your place.

How Free Software and Open Source Relate as Categories of Programs

Here's how free software and open source relate as categories of programs:

      / |                                            | \
     /  |                                            |  \
        |                                            |   \
        |                                            |
        |                                            |
        |                                            |
free    |                                            |
        |                                            |
        |                                            |    open source
        |                                            |
        |                                            |
     \  |                                            |
      \ |                                            |
        |                                        |   |   /
        |     tivoized (tyrant) devices          | O |  /
        |                                        |   | /

Tivoized or “tyrant” devices contain nonfree executables made from source code that is free. As of 2013, many Android devices are tyrant, but some are not.

“O” stands for “other” and refers to programs whose source is under licenses which are open source but not free.

 [FSF logo] “Our mission is to preserve, protect and promote the freedom to use, study, copy, modify, and redistribute computer software, and to defend the rights of Free Software users.”

The Free Software Foundation is the principal organizational sponsor of the GNU Operating System. Support GNU and the FSF by buying manuals and gear, joining the FSF as an associate member, or making a donation, either directly to the FSF or via Flattr.

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