Wizards of OS

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Wizards of OS (Wizards of Operating Systems, or "WOS") was a semi-annual Berlin-based conference that was held four times between 1999 and 2006. Its topics were the cultural and political potentials of free software, software technology, digital networks and media, and more generally information freedom and open cooperation in the creation and proliferation of knowledge. The conference was interdisciplinary, and included among its attendees scientists, engineers, social researchers, scholars from the humanities, artists and activists.

The name was a word play on The Wizard of Oz. The acronym "OS" stands for operating system (not open source).