Course Content
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
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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.
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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.
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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.
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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
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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?
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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.
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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
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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.
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Let’s Find Out How Computers Work

🧊 What Happens When It Gets Too Hot?

Computers use electricity.
Electricity = heat.

If too much work is being done, or the fan stops working…

…the computer gets HOT.

And when that happens:

  • It slows down

  • The screen might freeze

  • The system may shut down to protect itself

  • You might hear loud fan noise

 

💨 What’s the Fan For?

The fan moves air across the computer’s parts to cool them down.

Some computers also have:

  • Heat sinks — little metal pieces that absorb heat

  • Cooling pipes — that move heat to cooler places

  • Special software — that slows the system if it’s too hot

Phones don’t have fans. That’s why they get hot faster and slow down on hot days or heavy games.

 

🧫 What About Viruses?

A computer virus is a type of malware — bad software.

It’s a program that:

  • Installs secretly

  • Makes copies of itself

  • Tries to take control

  • Sends your files to others

  • Slows down or breaks your computer

It’s like a sneaky trickster living inside your system.

 

🚫 Can You Catch a Virus From Just Browsing?

Usually no.

But clicking unsafe links, downloading sketchy files, or plugging in USBs from strangers?
That’s how they spread.

 

💡 How Do We Stop Them?

  • Install antivirus software

  • Don’t download random apps

  • Don’t click suspicious links

  • Keep your system updated

  • Use strong passwords

Some viruses can be removed. Others may damage files forever.

 

🧠 What Does It Mean When a Computer Gets Confused?

Sometimes the system isn’t hot or broken.
But it’s slow, glitchy, or acting weird.

That could mean:

  • Too many things are open

  • An app has a bug

  • A setting is wrong

  • A driver is outdated

  • The system hasn’t restarted in weeks

Often, a simple restart or update helps clear the confusion.