Before software existed, before computers as we know them were even a concept, a woman in Victorian England was writing instructions for a machine her era had no way to build. That’s what Ada Lovelace did — and it’s also why her story remains so hard to fit into conventional tech narratives.
Who Was Ada Lovelace?
Born in 1815 as Augusta Ada Byron, she was the daughter of the poet Lord Byron and Annabella Milbanke, a mathematician. Her mother — wary of the romantic excesses of the father Ada never knew — made sure she received a rigorous education in math and science. That was extraordinarily rare for a woman at the time.
From a young age, she showed an unusual capacity for abstract thinking. At seventeen, she met mathematician Charles Babbage, who would become her most important collaborator. That relationship would change the history of computing.
The Analytical Engine and the First Algorithm
Babbage designed the Analytical Engine: a mechanical device theoretically capable of performing complex calculations by following a set of instructions. It was never actually built during either of their lifetimes — but the concept was revolutionary.
In 1842, Lovelace translated an article about the machine written by Italian mathematician Luigi Menabrea and added her own notes — which ended up being three times longer than the original text. In those notes, she described step by step how the machine could calculate Bernoulli numbers. That sequence is considered the first algorithm in history designed to be executed by a machine.
Beyond Calculations
What makes Lovelace particularly remarkable isn’t just the algorithm itself — it’s the vision behind it. While Babbage saw his machine primarily as an advanced calculator, Lovelace understood something deeper: that a machine capable of following instructions could operate on any kind of symbol, not just numbers.
She wrote that the Analytical Engine could compose music, produce graphics, or do anything that could be expressed through relationships between objects. In the 1800s, that was a conceptual description of what we now call general-purpose computing. It’s also a reminder that the gender gap in tech didn’t start with Silicon Valley — it has roots that go back centuries.
Why It Took So Long to Recognize Her
Ada Lovelace died in 1852 at thirty-six. Her notes were largely forgotten for nearly a century. It wasn’t until the mid-twentieth century — when Alan Turing and other computing pioneers were building the first real computers — that someone went back, read them, and recognized what they contained.
The pattern is the same one that runs through this entire series: the work was there. The recognition came late, and incomplete. Just as we debate today which programming languages and tools will define the future, Ada had already understood that the real question wasn’t about the machine — it was about the instructions humans write for it.
A Programming Language Bears Her Name
In 1980, the U.S. Department of Defense developed a general-purpose programming language and named it Ada in her honor. It’s one of the rare cases where the official history of technology explicitly acknowledged a debt to a woman.
That belated recognition doesn’t erase a century and a half of silence — but it says something about the weight of her legacy. When a name was needed for one of the most ambitious languages of its time, Ada Lovelace’s was the one chosen.
This is the second installment of the Women Who Built Technology series. You can also read the first entry on Radia Perlman. Coming up: Grace Hopper and Margaret Hamilton.
