"CVS (Concurrent Versions System) is a utility used to keep
several versions of a set of files, and to allow several developers
to work on a project together. It allows developers to see who is
editing files, what changes they made to them, and when and why
that happened. Many programming projects (both open-source and
proprietary) use CVS nowadays. Ever wonder why there seem to be
directories called 'CVS' in a source package you just downloaded?
That's the developer who packaged it being lazy. Ever see one of