This document discusses installing and using the Concurrent Versions System (CVS) version control software. It describes CVS as a version control system that allows developers to track changes to files over time. The document then provides steps for installing CVS on Windows by first installing Cygwin to enable CVS functionality. It explains downloading and installing msysgit to get Git version control capabilities. After installation, the document describes basic Git commands and setting up a GitHub account to host code repositories remotely.