Version Control
Also known as: source control, git, VCS
A system that records changes to files over time so you can recall specific versions, compare changes, and collaborate without overwriting each other's work. Every professional software team uses version control.
💡 Intuition
Version control is an unlimited undo button for your entire project — plus the ability for multiple people to work on the same files simultaneously.
Core Idea
Version control enables collaboration, provides a complete history of changes, and makes it safe to experiment.
🔬 Example
🎯 Why It Matters
Every professional software team uses version control. It's as fundamental to development as a text editor.
⚠️ Common Confusion
A commit is a snapshot of your project at a point in time, not a copy of the whole project. Git stores differences, not duplicates.
Related Concepts
Prerequisites
How Version Control Connects to Other Ideas
To understand version control, you should first be comfortable with code maintenance.
Go Deeper
Frequently Asked Questions
What is Version Control in CS Thinking?
A system that records changes to files over time so you can recall specific versions, compare changes, and collaborate without overwriting each other's work.
Why is Version Control important?
Every professional software team uses version control. It's as fundamental to development as a text editor.
What do students usually get wrong about Version Control?
A commit is a snapshot of your project at a point in time, not a copy of the whole project. Git stores differences, not duplicates.
What should I learn before Version Control?
Before studying Version Control, you should understand: code maintenance.