🐜 No, Not an Insect
When we say a computer has a bug, we don’t mean an ant is crawling on the keyboard.
We mean the instructions (code) are wrong, broken, or out of order.
That’s called a software bug — and it can make the computer act silly or stop working.
💡 Where Do Bugs Come From?
People write software. And people make mistakes.
Here’s an example of what a bug might look like:
Oops! That should be:
One equals sign instead of two?
Boom. The computer won’t understand and the game crashes.
📖 Real-World Example: The NASA Bug
In 1999, NASA lost a $125 million space probe.
Why? Because one team used inches, the other used centimeters in their code.
The rocket flew the wrong way and crashed.
That’s a bug — a very expensive one.
😅 But Bugs Don’t Always Crash
Sometimes bugs just make apps behave weirdly:
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A button does nothing
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A picture appears upside down
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A game lets you walk through walls
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You can’t save your work
These are all caused by instructions that don’t work as expected.
🛠️ What Do Programmers Do?
They do something called debugging.
That means:
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Reading through the code
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Testing small parts
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Watching what the app does
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Fixing the mistake
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Trying again
Debugging is like solving a mystery.
You have to find the wrong clue and replace it.
🔁 Bugs Can Happen Again and Again
Even after you fix one bug…
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Another bug might appear
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A fix might cause a new problem
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An update might break something else
That’s why apps and games often update so often — to fix bugs!