What is Git? Step by step explanation to turn you to a PRO in GitHub

Описание: Lesson 1: What is Git? (From Absolute Zero)
(Take notes — I’ll pause mentally after each section so you can write.)

1️⃣ First, a Simple Question
Why was Git created?
Imagine this situation 👇
You are working on a file:
project.docx
project_final.docx
project_final_v2.docx
project_final_really_final.docx
project_final_really_final_please_work.docx
😵 Chaos, right?
Now imagine:
• You changed something
• It broke your project
• You want to go back to yesterday’s version
• But you don’t know which file was correct
👉 This problem is called VERSION CONTROL

2️⃣ What is Version Control? (IMPORTANT)
📌 Definition (Write this)
Version Control is a system that tracks changes made to files over time, so you can:
• See what changed
• Who changed it
• When it changed
• Go back to any previous version
Think of it like Google Docs history, but for code and files.

3️⃣ So… What is Git?
📌 Definition (Very Important)
Git is a Version Control System (VCS)
It runs on your computer and tracks changes in your files.
In simple words:
• Git is a time machine for your project
• Git remembers every change
• Git lets you undo mistakes safely

4️⃣ What Git is NOT ❌
Many beginners get this wrong, so note carefully:
❌ Git is NOT:
• A programming language
• A website
• Only for developers
• Only for teams
✅ Git IS:
• A tool
• Used locally on your laptop
• Helpful even if you work alone

5️⃣ Real-Life Analogy (Very Important)
📘 Git = Diary of Changes
Imagine you’re writing a book.
Every day you write:
“Day 1: Added Chapter 1”
“Day 2: Fixed spelling mistakes”
“Day 3: Deleted Chapter 2”
Git does exactly this, but for files.
Each diary entry is called a COMMIT
(We’ll study commits deeply later.)

6️⃣ What Problems Does Git Solve?
Write these points clearly:
✔ No fear of breaking code
✔ Easy rollback to older versions
✔ Clear history of changes
✔ Multiple people can work safely
✔ Industry standard (used everywhere)

7️⃣ Where is Git Used?
Git is used by:
• Google
• Microsoft
• Amazon
• Netflix
• Startups
• Open-source projects
📌 Every serious tech company uses Git

8️⃣ Git Works LOCALLY
This is very important:
Git works on YOUR computer
• No internet required
• Files stay with you
• History is stored locally
GitHub comes later

Key Terms
Term Meaning
Git Version control tool
Version Control Tracking changes over time
Repository (Repo) A project tracked by Git
Commit A saved change with a message

Homework
1️⃣ Write in your notebook:
• What problem Git solves (in your own words)
• One real-life analogy of Git
2️⃣ Answer this :
Why is Git better than saving multiple file versions?