01155nas a2200121   4500008004100000022001400041245003400055210003300089260004200122520081100164100002200975856003600997       2009                        eng d  a1913-610200aF/LOSS is Commercial Software0 aFLOSS is Commercial Software  aOttawabTalent First Networkc02/20093 aMany people mistakenly use the term "commercial software" as if it was the opposite of Free/Libre Open Source Software (F/LOSS). This is in spite of: i) the rise in commercial development and support for F/LOSS; ii) the goal of most F/LOSS projects to incorporate improvements, which is actually a form of financial gain; iii) official definitions of "commercial item" that include F/LOSS; and iv) F/LOSS licenses and projects that clearly approve of commercial support.

In reality, there are two types of commercial software: proprietary software and F/LOSS. This paper provides examples for each of the four points mentioned above, briefly notes some alternative terms, and ends with some conclusions, and explains why it is important to understand that F/LOSS software is almost always commercial. 
1 aWheeler, David, A  uhttp://timreview.ca/article/229