What is Version Control?

Version Control is a collection of programs and procedures for promoting orderly change of programs, data, and other electronic materials.
Version Control provides several capabilities:
- A method for maintaining information.
- The ability to make controlled changes to electronic information.
- A way to track the changes that were made and who made them.
- One or more methods of comparing any two versions of the same information.
- A way to undo changes when they cause problems.
Version Control usually operates on text files, including program source code, plain text documents, specially formatted documents, and other ASCII files.
It may also allow change control of non-ASCII files, such as program libraries, binary-formatted text (e.g., a word processing file), and other binary files.