A folder tracked by Git that stores your project files and their complete change history.
A repository (or 'repo') is like a digital scrapbook with a perfect memory. It stores not just your current project files, but a complete history of every change ever made.
When you initialize Git in a folder, that folder becomes a repository. Git watches for changes and lets you save snapshots (called commits) at any point. Each snapshot preserves exactly what your project looked like at that moment. You can jump back to any previous snapshot if something breaks.
Repositories are crucial because they enable collaboration, protect against accidents, and provide a complete audit trail. On GitHub, each remote repository is accessible to your team, making it the central hub for project development.
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