Computer-science: What does OBS mean?

[FlorianHoornaar]

Under the section Core Programming I read the following:

OBS: probably the best resource to learn Haskell: Haskell Programming from First Principles

I could be me (wouldn't be the first time, and I'm not from the US)... what does OBS stand for? I guess it's an abbreviation?

[empeje]

I think it is Open Build Service http://openbuildservice.org/help/

[FlorianHoornaar]

Open Build Service and Haskell don't seem related. At least not in the context of the reading recommendation. Right?

[hanjiexi]

I haven't seen the abbreviation used much but I believe it means observa, which means "take note / observe".

[ricmarinovic]

@hanjiexi is right. It could be changed to "Note:" or something else. "OBS:" is common em portuguese which is the author's native language. It means _observation_, something to take note of.