Let me explain a bit about the economics of Open Source.
The
Open Source is actually a kind of modification of the
Free Software Foundation. Someone will explain the differences later.
The Free Software foundation encourages people to freely make avaible the source code of a program, so that people can study, modify or compile it without anyone telling them that it's not allowed.
Linux is GPL licenced. GPL comes from the Free Software Foundation, that gave out a license that the author of a program must always include a source code. The user of a program can use source code, as long as it's for a program that is GPL licensed.
OK, maybe some other member of this forum can explain you how Open Source and Free software can be benefisial to a company like Apple, Sun or Red Hat. Or I will in a when I have some spare time left
. (please ignore the spellings errors, English is my second language).