🧠 Let’s See What Happens When You Open an App

You click a game icon.

What happens next?

Let’s walk through it step by step.

🔁 Step 1: The Click

You double-click the icon.

The mouse sends that signal to the computer’s brain (CPU).

The brain says: “Oh! That means: ‘Start this program.’”

💾 Step 2: Load from Storage

The instructions for the game are stored on the hard drive or SSD.

The brain tells the storage:

“Hey, give me all the bits for this app.”

The storage sends them to RAM (short-term memory).

🧠 Step 3: Start Reading the Instructions

Now the CPU (the brain) starts doing what the software says.

For example:

• It might draw the game menu

• Turn on background music

• Wait for you to press “Start”

• Load your saved progress

It’s doing what the software tells it — line by line.

📜 Every Program Is a List of Tasks

Imagine the game’s instructions look like this:

1. Draw the background

2. Show the player

3. Wait for keyboard input

4. If the player jumps, move them up

5. If they collect a coin, add 1 to score

6. Repeat!

The CPU keeps checking and doing, checking and doing.

🧠 How Fast Does It Do This?

Billions of instructions every second.

You might not see it, but:

• Every button press

• Every sound

• Every enemy moving

• Every level loading

…happens because the software said so.

📊 What If It Crashes?

Sometimes software has bugs — mistakes in the instructions.

If the brain reads a bad instruction, it might freeze, crash, or act weird.

That’s why programmers test software — again and again — to find and fix mistakes.