[GRASS5] Re: [Fwd: whinging about GRASS again]

[Jack Varga]

Russell Nelson wrote:

> Public domain software is open source software.  

Since when?

Several "public domain" applications (e.g., Trumpet Winsock, PKZip, 
ArcExplorer, etc.) exist whose binary executable is available for free 
to anyone who wants to download it, while the source is not disclosed. 
While these applications are in the public domain, their source code is 
definitely not.  Open source is a subclass of public domain.  That is, 
their source code is in the public domain in addition to their binary 
executables.