Manchester Baby

Imagine a computer that was the first one ever to remember its own instructions! That's the Manchester Baby. It was built a long, long time ago, in 1948, by some super smart scientists.

It wasn't big like the computers we have today; it was more like a small box. But even though it was small, it was a HUGE deal because it was the very first computer that could store its own program inside its memory. Think of it like a tiny brain that could be told what to do and then remember it!

Three clever people named Frederic C. Williams, Tom Kilburn, and Geoff Tootill worked together at a place called the University of Manchester to build this amazing machine. They wanted to test a new kind of computer memory, like a special kind of brain cell for computers.

The Manchester Baby was their test to see if it would work. It was like building a special toy to see if a new part would fit perfectly. On June 21, 1948, they turned it on, and it ran its first program.

Hooray!

Even though the Manchester Baby wasn't built to do super hard jobs, it was super important! It showed everyone that computers could be built to store their own instructions. This was like discovering a secret superpower for computers!

Because it worked, the scientists could then build bigger and better computers. The Manchester Baby is like the grandparent of all the computers, phones, and tablets we use today. Without it, our modern gadgets might not exist!

The Manchester Baby was very simple. It could only do subtraction and figure out if a number was negative. To do other math, like adding or multiplying, the scientists had to write special instructions, like a secret code.

The first program it ever ran was to find a special number. It took about 52 minutes and did millions of tiny calculations. It was like a super slow-motion math puzzle, but it proved the computer could do what it was told and remember the steps!