Free and Open Source Software, What’s the FOSS about?

Anyone beginning their software development journey must have gotten some advice to use Free and Open Source Software.   What is free and what is open about these Software? What are the benefits and are they better alternatives to their commercial peers?   The executive director at Ushahidi, who sits on the Creative Commons Board of Directors and co-founded AkiraChix, Angela Oduor Lungati, will be guiding us into the world of Free and Open Source Software.