Concurrent Versions System (CVS) Question:

CVS uses a client-server architecture: a server stores the current version(s) of a project and its history and clients connect to the server in order to "check out" a complete copy of the project, work on this copy and then later "check in" their changes. Typically, the client and server connect over a LAN or over the Internet, but client and server may both run on the same machine if CVS has the task of keeping track of the version history of a project with only local developers. The server software normally runs on Unix (although at least the CVSNT server also supports various flavours of Microsoft Windows), while CVS clients may run on any major operating-system platform.