Version control systems track changes to files and code over time, letting you see what changed, who changed it, and why. Whether you're working alone on a project or collaborating with others, version control prevents lost work, makes it easy to undo mistakes, and keeps everyone's changes organized. Git is the most widely used system, and repositories are the folders where your project files and their complete history live.
These guides explain how version control actually works, how to set up a repository on your computer, and how to use common commands to save your work, track changes, and sync files with others. You'll learn what happens when multiple people edit the same file, how to undo changes without losing everything, and how to use platforms like GitHub to store and share your repositories.