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Mystery Mondays: The Origins of the Computer Will Surprise You

- April 28, 2025
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When you think of a computer, what comes to mind? What are the origins of the computer, and why is it such a common term?

Chances are, you picture a sleek laptop, a powerful desktop, or maybe even your phone (because, let’s face it, it is a pocket-sized supercomputer). But the word computer existed long before we had Wi-Fi, Windows, or even electricity.

In fact, the first computers weren’t machines at all. They were people.

Yes. Real-life, brain-powered, calculator-style humans.

This Monday, we’re diving into the brainy, unexpected, and oddly poetic origins of the word computer—and why the term reminds us that even the most high-tech words can have humble beginnings.

 

The Human Computer Era

Let’s rewind to the 1600s.

Before modern machines, when scientists, astronomers, and engineers needed calculations done—say, to chart the stars, build a bridge, or predict tides—they hired people to do the math. These people were called computers.

That’s right. Computer was once a job title.

They were usually extremely skilled at arithmetic and often worked in teams. Some of the most famous human computers were women—especially during the 19th and early 20th centuries, when they calculated everything from ballistics trajectories to rocket launches.

So originally, a computer wasn’t something you used. It was someone you hired.

 

Let’s Break Down the Origins of the Computer (as a word!)

The word computer comes from the Latin computare, which means:

  • com- = together
  • putare = to reckon, prune, or settle

So computare literally meant something like “to reckon together” or “to bring ideas or numbers into order.” Kind of perfect, right?

It passed through French as computer and into English by the early 1600s. But it was always used to describe someone who calculated—by hand, by brain, by paper, and maybe with a little help from a slide rule.

 

When Machines Took Over

By the late 1800s, mechanical devices for math were popping up—basic adding machines and early calculators. But they weren’t called computers yet. The people using them were still the computers.

It wasn’t until World War II that the meaning started to shift.

Massive projects like codebreaking and ballistics required endless rows of calculations. And guess who was doing it? A whole workforce of women computers, many of whom would go uncredited for decades. (Shoutout to NASA’s “Hidden Figures”!)

But as machines got more powerful, reliable, and fast, they began to replace the human computers. That’s when the meaning of the word flipped.

By the 1950s, a computer was no longer a person. It was a machine.

 

From Room-Sized Giants to Pocket-Sized Geniuses

Early computers were massive. We’re talking whole rooms full of wires, vacuum tubes, and noise. But they could perform calculations in seconds that would’ve taken human teams hours.

As the technology shrank, computers got more personal. First came desktop models, then laptops, and now smartphones with more processing power than the systems used to land humans on the moon.

But even as the technology evolved, the name stuck—a reminder of its origin as a person who made sense of numbers.

 

Origins of the Computer: A Word That Evolved with Us

The story of computer is more than just a word journey. It’s a story of how language evolves alongside society and technology.

The shift from human to machine didn’t erase the original meaning—it built on it. Today’s computers still “compute.” They just do it at light speed.

And isn’t that what words do, too? They grow, adapt, and expand as the world changes. Sometimes they even do a full 180. (Looking at you, “girl”—which once meant any young child, regardless of gender. But that’s another Mystery Monday!)

 

Final Thoughts: Computers Are People Too (Sort Of)

It’s kind of poetic when you think about it. The machines we call computers today exist because of the brilliant minds of human computers who came before them—many of whom never got the recognition they deserved.

So the next time you fire up your laptop or ask your smart speaker to play your “Concentration Boost” playlist, remember: that word you’re using? It started with people. With scribbled notes. With chalkboards and math done by hand.

Stay tuned for next week’s Mystery Mondays, where everyday words reveal their not-so-everyday pasts. Got a word you want us to investigate? We’re all ears—and etymology!