Let’s Find Out How Computers Work

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About Course

What’s really inside a computer? What makes it turn on, store pictures, run games, and help people build rockets or design buildings?

In this course, we’ll go deep into the machine hardware – but in a way that makes perfect sense, even if you’ve never opened a computer before.

You’ll learn what all the parts are, how they talk to each other, and why even the tiniest chip matters. We’ll explore how computers remember things, how they follow instructions, and what really happens when you click a button.

By the end, you’ll look at every laptop, phone, or tablet with fresh eyes—because now, you’ll actually know how it works.

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What Will You Learn?

  • Understand what makes something a computer and how it works
  • Learn how computers use electricity to think in 0s and 1s
  • Discover how switches and circuits build memory and logic
  • See how numbers, words, images, and music turn into code
  • Explore how the CPU, RAM, storage, and other parts work together
  • Understand what happens when you run software or open an app
  • Learn the difference between hardware and software
  • See how a phone is just a smaller kind of computer
  • Build a simple working model of a computer using switches and logic
  • Gain real mastery of how modern computing actually works

Course Content

Part 1: What Is a Computer, Really?
What makes something a “computer”? Why do computers need instructions? How are computers different from TVs, fridges, or robots?

Part 2: Talking Without Words
How people used to send messages across long distances The story of light flashes, drum beats, smoke signals, and Morse code Why using dots and dashes (or 0s and 1s) is so powerful. Let’s Talk in Just Two Choices: On or Off - What is binary, and why do computers love it? How “on” and “off” can mean anything—yes/no, true/false, A/B Why 2 choices are enough to build everything

Part 3: How Electricity Can Carry a Message
What is a circuit? How flipping a switch sends a message Why computers are made of millions of tiny switches.

Part 4: Building Ideas Using Only Switches
What is a logic gate? (Explained without saying “logic gate”) How switches can help us decide things How “AND,” “OR,” and “NOT” control what a computer does.

Part 5: How to Count, Add, and Remember With Just Wires
How computers add numbers using only switches What memory really is: remembering a single bit, then a byte How your computer stores your name, photos, and passwords. How switches can do math with just yes/no What memory means for a machine What bits and bytes really are (without the jargon). What are AND, OR, NOT, and more. How pictures, words, and videos are stored as 0s and 1s.

Part 6: Making Bigger Ideas with Tiny Ones
What is a byte? What is a file? How letters, music, pictures, and videos become 0s and 1s What happens when you type on a keyboard

Part 7: Meet the Heart of the Computer — the CPU
What the CPU really does (without calling it “central processing unit”) How it reads instructions, decides things, and tells others what to do How fast is it, really?

Part 8: Let’s Look Inside a Real Computer
What is a motherboard? How all the parts connect: CPU, memory, storage, input/output What happens when you turn a computer on.

Part 9: What Is Software and Who Tells It What to Do?
What is an operating system? How computers follow code like a recipe What happens when you open an app

Part 10: How Is a Phone Like a Computer?
What’s different inside a phone or tablet? How mobile computers are smaller—but just as powerful Why phones still need the same ideas: binary, circuits, memory.

Part 11: What Happens When Computers Crash?
And, why does it happen?

Part 12: Can You Build Your Own Computer?

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