Say Hello To Ada Lovelace, One Of The World’s First Computer Programmers
- Aug 12, 2019
- 6 min read
On the 5th of June, 1833, in a London drawing room filled with society figures, mathematicians and curious onlookers, a seventeen year old girl stood before a gleaming mechanical contraption of brass wheels and interlocking gears. The machine clattered into motion, turning with measured precision. It was called the Difference Engine. Most in the room saw an impressive curiosity. She saw something far larger.
The girl was Ada Lovelace. The inventor demonstrating the machine was Charles Babbage. That evening would quietly shape the intellectual history of computing.
A Child of Poetry and Precision
Ada was born Augusta Ada Byron on 10th December, 1815. Her father was the Romantic poet Lord Byron. Her mother was Anne Isabella Milbanke, a woman of strong moral conviction and notable mathematical ability.
The marriage had already begun to unravel by the time Ada was born. Within weeks, Lady Byron left her husband and took her infant daughter away. Byron left England soon after and died in Greece on 19th April, 1824, when Ada was eight years old. She never knew him.
Lady Byron resolved that her daughter would not inherit what she believed to be Byron’s instability. Literature was discouraged. Mathematics was encouraged. Logic, discipline and analytical study were treated almost as moral safeguards.
Yet Ada did not become purely mechanical in temperament. She later described her intellectual method as “poetical science”. She also referred to herself as an “Analyst and Metaphysician”. The phrases are revealing. She did not see imagination and mathematics as opposing forces. She saw them as partners.
Illness, Curiosity and Flyology
Ada’s childhood was marked by illness. At eight she suffered severe headaches that affected her vision. In 1829, after measles, she was temporarily paralysed and confined to bed for nearly a year. By 1831 she could walk again, using crutches.
During these periods of recovery she read, calculated and speculated. At twelve she undertook a project she titled Flyology. It was not a fantasy sketchbook but a structured investigation. She studied bird anatomy, calculated wing to body ratios, evaluated materials such as silk and wire, and even considered how steam power might assist flight. She planned to include diagrams and plates. It was an early sign of a mind that combined vision with method.
Her tutors recognised the depth of her ability. Among them was the mathematician Augustus De Morgan, who later wrote to her mother that had Ada been a young man, “they would have certainly made him an original mathematical investigator, perhaps of first rate eminence.” The remark was both praise and indictment of the era.
Mary Somerville and the Scientific Network
One of the most important figures in Ada’s intellectual formation was Mary Somerville. A respected mathematician and scientific writer, Somerville moved in serious scientific circles at a time when few women did.
Somerville introduced Ada to leading thinkers and provided a model of what female intellectual life could look like in nineteenth century Britain. Without Somerville, it is unlikely Ada would have encountered Babbage so early or so directly. She was not simply a friend. She was a bridge.
In 1833, at one of Babbage’s Saturday evening gatherings, Somerville brought Ada to see the Difference Engine demonstrated. These salons were not casual parties. They were part of a culture of public scientific display. Inventors needed patrons. Patrons needed spectacle. Knowledge and status mingled in the same room.
Why the Engines Mattered
Babbage’s original Difference Engine was designed to eliminate human error in mathematical tables. At the time, navigation, engineering and finance depended on printed tables compiled by human “computers”. Errors could be costly. Mechanising calculation promised reliability and efficiency.
But Babbage’s ambitions extended further. His next design, the Analytical Engine, was not merely a calculator. It was conceived as a general purpose machine.
The Analytical Engine featured a “store” for holding numbers and a “mill” for processing them. It used punched cards inspired by the Jacquard loom, which encoded weaving patterns as sequences of holes. Babbage adapted this idea: instead of flowers and fabrics, the cards would encode operations.
The machine was never completed. Funding difficulties and engineering challenges intervened. Yet conceptually it anticipated modern computing architecture.
Marriage and Continuity of Study
On 08th July, 1835, Ada married William King, who later became the 1st Earl of Lovelace. She became Countess of Lovelace in 1838.
They had three children:
Byron King Noel, Viscount Ockham
Anne Blunt, later 15th Baroness Wentworth
Ralph King Milbanke, 2nd Earl of Lovelace
Motherhood did not end her mathematical studies. She wrote to Somerville that matrimony had “by no means lessened my taste” for mathematics. She studied trigonometry and higher equations while managing domestic responsibilities across homes in Surrey, Scotland and London.
Her life, however, was not without strain. There were rumours of flirtations, gambling debts in the late 1840s, and financial entanglements linked to her attempt to construct a betting system using mathematical modelling. Even these episodes reflect her instinct to analyse systems formally.
Translating Menabrea and Writing the Notes
In 1840 Babbage delivered a lecture in Turin on the Analytical Engine. The engineer Luigi Menabrea transcribed it in French and published it in 1842.
Ada was asked to translate the paper into English. Over nine months in 1842 and 1843 she did far more than translate. She added seven extensive notes labelled A to G. These notes were three times longer than the original article.
The publication appeared in September 1843 in Taylor’s Scientific Memoirs, signed with her initials A A L.
In Note G she described in full detail a method for calculating Bernoulli numbers using the Analytical Engine.
Bernoulli numbers arise in number theory and appear in formulas relating to sums of powers. Lovelace’s algorithm set out step by step instructions, including intermediate storage and repetition of operations. Although Babbage had written earlier unpublished programs for the Engine, hers was the first detailed algorithm intended for publication and for a general purpose machine.
Whether she originated every element of the method remains debated. What is certain is that her exposition is clear, structured and abstract in a manner recognisable to modern programmers.
The Conceptual Leap Beyond Arithmetic
More significant than the Bernoulli example was her conceptual insight.
She wrote:
“The Analytical Engine has no pretensions whatever to originate anything. It can do whatever we know how to order it to perform.”
This line has often been interpreted as a denial of machine creativity. In context, it was a precise statement about mechanism and instruction. Yet in the same notes she went further:
“Supposing that the fundamental relations of pitched sounds in the science of harmony and of musical composition were susceptible of such expression… the engine might compose elaborate and scientific pieces of music.”
Here was the decisive transition. Numbers could represent more than quantity. They could encode music, text, symbols. If relations could be formalised, the machine could manipulate them.
The computing historian Doron Swade later argued that this was the key conceptual shift from calculation to computation. It anticipated the symbolic logic that would define twentieth century computer science.
Credit, Debate and Historiography
The question of whether Ada Lovelace should be called the first computer programmer has generated sustained academic debate.
Babbage wrote earlier programs for the Analytical Engine between 1837 and 1840. These were not published. Lovelace’s Note G is the first published detailed program for the machine. Some historians argue that she refined Babbage’s work rather than originating it. Others emphasise her role as the clearest expositor of general purpose computing.
A balanced conclusion is this: she did not invent the Analytical Engine, but she articulated its broader implications more fully than its inventor did in print. Her contribution lies not only in algorithmic detail but in conceptual interpretation.
Final Illness and Burial
In 1851 Ada developed symptoms later understood as cervical cancer. The illness progressed over several months. Her mother took control of her care and restricted access to visitors. Under her mother’s influence she experienced a religious turn and made Lady Byron her executor.
She died on 27th November, 1852, aged thirty six. She requested burial beside her father. She was interred at the Church of St Mary Magdalene in Hucknall, Nottinghamshire.
Rediscovery and Enduring Influence
For decades her work received little attention. In 1953 her notes were republished in B V Bowden’s Faster than Thought, bringing them to a new generation at the dawn of electronic computing.
In 1979, the United States Department of Defense named a high order programming language Ada in her honour. The military standard MIL STD 1815 referenced her birth year. Ada Lovelace Day, founded in 2009 and observed each October, celebrates women in science, technology, engineering and mathematics.
The historian Walter Isaacson later wrote that her insight became “the core concept of the digital age”: that any content, whether music, text or image, could be expressed symbolically and manipulated by machines.
In the nineteenth century her obituary described her intellect as “thoroughly masculine”. The remark reflects more about the period than about her.
She stood in a drawing room in 1833 and watched gears turn. Others saw a calculating device. She saw a symbolic machine. The hardware would take more than a century to arrive. The idea was already there.
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