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In order to fulfil these requirements access to the [[source code]] is essential, so free software is a type of [[open source]] software. The freedom to distribute the software may be subject to a clause that ensures that future recipients of the software have the same freedoms.

In order to fulfil these requirements access to the [[source code]] is essential, so free software is a type of [[open source]] software. The freedom to distribute the software may be subject to a clause that ensures that future recipients of the software have the same freedoms.

Examples of free software are the [[GNU/Linux|Linux]] operating system and the [[Apache (software)|Apache]] web server.

Examples of free software are the [[Linux|GNU/Linux]] operating system and the [[Apache|Apache (software)]] web server.

==Free Software and Freeware==

==Free Software and Freeware==

Free Software is not the same as [[freeware]]. Free software can be sold for a fee, and freeware may not grant the user the freedoms necessary to qualify as free software. In order to avoid confusion between the two meaning of ''free'' some people describe free software as "free (libre) software".

Free Software is not the same as [[freeware]]. Free software can be sold for a fee, and freeware may not grant the user the freedoms necessary to qualify as free software. In order to avoid confusion between the two meaning of ''free'' some people describe free software as "free (libre) software".