CVS is a tool to record, manage and distribute different versions of files. In other words, CVS is a version control system. It allows easy collaborative work, as each of the contributors can work in his local copy at the same time, without fear of overriding each other modifications. It allows the recovery of past versions (useful for tracking bugs), the creation of branches (for experimental development or for releases) and more.

http://www.osnews.com/story/6096

mkdir /home/user/repository
cvs -d /home/user/repository init
mkdir /home/user/repository/myproject

http://cervisia.sourceforge.net/documentation/