Naman Pal on Instagram: "Every time you press Ctrl + Z or the Undo button, your computer quietly uses a Stack Data Structure in the background. 🧠 Let’s understand how 👇 Whenever you perform an action — typing a letter, moving a file, or editing a video — that action is stored inside a Stack. A Stack works on the LIFO principle — Last In, First Out. That means the most recent action you performed is the first one to be undone. Example: If you type the word HELLO, your actions are stored like th