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30 Weird Computer Facts That Will Blow Your Mind

30 Weird Computer Facts That Will Blow Your Mind – Computers are a huge part of our daily lives, but there are so many weird and unexpected things about them that most people don’t know.

From bizarre historical events to mind-blowing technological quirks, here are 30 weird computer facts that will make you see your device in a whole new light!

1. The First Computer Bug Was an Actual Bug

In 1947, computer pioneer Grace Hopper discovered a moth stuck in a relay of the Harvard Mark II computer. She called it a “bug,” and that’s how we got the term debugging.

2. The QWERTY Keyboard Was Designed to Be Slow

If you’ve ever wondered why your keyboard layout is so awkward, it’s because it was designed in the 1870s to prevent typewriter jams. Now, it’s just tradition keeping us from using faster layouts like Dvorak.

3. The First Computer Virus Was Harmless (Sort of)

The first computer virus, Creeper, was created in the early 1970s as an experiment. It simply displayed the message, “I’m the creeper, catch me if you can!”—nothing malicious, just a little prank.

4. The World’s First Website Is Still Online

The very first website, created by Tim Berners-Lee in 1991, is still accessible today. You can visit it at info.cern.ch, and it’s as basic as you’d expect.

5. Computers Have an Expiration Date

Even though they don’t rot like food, laptop batteries start degrading after about 1,000 charge cycles. This means most laptops become significantly weaker in just a few years.

6. The First 1GB Hard Drive Was the Size of a Refrigerator

Back in 1980, IBM released the first 1GB hard drive, and it weighed over 500 pounds. Now, you can fit 1TB of storage in something smaller than a fingernail.

7. A Computer Once Beat a Chess Grandmaster

In 1997, IBM’s Deep Blue defeated world chess champion Garry Kasparov, marking the first time a computer outplayed a human in a chess match.

8. Passwords Were Once Stored in Plain Text

Early computers didn’t even bother encrypting passwords, meaning anyone with access to the system could read them. Luckily, we’ve come a long way since then.

9. The First Mouse Was Made of Wood

Invented by Douglas Engelbart in 1964, the first computer mouse was carved from wood and had just one button.

10. Computers Are Better at Recognizing Faces Than You Think

AI-driven facial recognition is so advanced that some programs can detect people even when they wear masks or sunglasses.

11. The “@” Symbol Was Almost Never Used

Before email, the @ symbol was rarely used outside accounting. Now, it’s a fundamental part of digital communication.

12. The Pentagon Uses Floppy Disks (Or Used To)

Until 2019, the U.S. military’s nuclear weapons system still ran on 8-inch floppy disks. Talk about outdated security!

13. The First Webcam Was Created to Watch a Coffee Pot

The first webcam was set up in 1991 at the University of Cambridge—its sole purpose was to let researchers monitor if there was coffee left in the pot.

14. Supercomputers Predict the Weather

Modern weather forecasting relies on supercomputers that perform quadrillions of calculations per second.

15. The “CAPTCHA” Test Was Invented to Stop Spam

Those annoying tests where you prove you’re not a robot? They were created to block automated bots from spamming websites.

16. There’s More Computing Power in Your Phone Than the Apollo 11 Mission Had

The computer that took astronauts to the Moon in 1969 was far less powerful than the smartphone you carry in your pocket today.

17. The Longest Computer Uptime Was Over 16 Years

A DEC AlphaServer in a university lab ran continuously for 16 years before it was shut down.

18. Computers Work With Just Two Numbers

Everything a computer does is based on just 1s and 0sbinary code—which makes it amazing how complex modern computing has become.

19. Some Hard Drives Can Survive Extreme Conditions

Military-grade solid-state drives (SSDs) can withstand extreme heat, cold, and even water submersion.

20. The Internet Weighs About as Much as a Strawberry

If you calculate the weight of all the electrons that make up the global internet data flow, it’s roughly the weight of a strawberry.

21. “404 Not Found” Has an Interesting Origin

The error message 404 comes from the original room number (Room 404) where the first web servers stored lost files.

22. There’s a “Hall of Fame” for Hackers

The DEF CON hacking conference has an unofficial “Wall of Sheep,” where they display usernames and passwords that careless attendees expose on unsecured networks.

23. Windows XP is Still Used Today

Even though Windows XP was released in 2001, some government systems and ATMs still run on it due to its stability.

24. Google’s First Storage Was Made of LEGO

When Larry Page and Sergey Brin built Google’s first server, they used LEGO bricks to create a storage system for their 40GB hard drives.

25. The Word “Robot” Comes From a Play

The term robot was first used in a 1920 Czech play called R.U.R. (Rossum’s Universal Robots).

26. The Fastest Supercomputer Can Perform 442 Quadrillion Calculations per Second

As of 2024, Frontier, a U.S.-based supercomputer, holds the record for speed, reaching 1.102 exaflops.

27. Apple’s First Logo Featured Isaac Newton

Apple’s original logo in 1976 showed Isaac Newton sitting under an apple tree, before switching to the now-famous bitten apple design.

28. Computers Helped Discover New Planets

NASA uses machine learning and AI to find exoplanets that human astronomers might miss.

29. There Are More Malware Programs Than Legitimate Ones

There are over a billion malware programs worldwide—meaning there are actually more harmful programs than legitimate software applications.

30. The “Cloud” Isn’t in the Sky

Despite the name, cloud computing doesn’t involve actual clouds—it just means data is stored on someone else’s computer, usually in massive data centers.


Computers are full of weird surprises! Hopefully, these 30 weird computer facts gave you a new appreciation for the tech we use every day.

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