The FOSS world has developed many excellent SCMs to choose from. Each have their strengths and weaknesses, and choosing which SCM to use for a new project is always a popular subject for debate.

You may want to start your own project someday, and you will have to choose an SCM. Right now, though, you will be working with existing projects, which means the SCM has been chosen for you. The following SCMs are among those you are likely to see:

Eventually you may use these and other SCMs. Each SCM has some unique characteristics -- but most basic version control concepts are common to all SCMs.

Since these concepts may be new to you, the focus will be on learning one SCM: Subversion.