Lizzi Collinge

I absolutely agree with my hon. Friend and with Georgina that having role models and mentors is really important. One of Ada’s mentors was a woman called Mary Somerville, a scientist and polymath. It was Mary who introduced Ada to Charles Babbage, whose work would capture her interest and provide the inspiration for her most significant contributions. Babbage was a professor of mathematics and a celebrity in the scientific world. He was a visionary, with countless unfinished plans for clockwork calculating machines. At the time, his fascination was his latest device, the analytical engine, a proposed improvement on his earlier and uncompleted difference engine. The analytical engine, he said, would be able to perform any calculation set before it, but the patience of his parliamentary sponsors had worn thin. Having funded him to the tune of £1.7 million in today’s money, they refused to finance a second machine while the first was unfinished. Babbage was therefore forced to look abroad. After he gave a lecture at the University of Turin, the Italian engineer Luigi Menabrea wrote up his notes and published them in French. Charles Wheatstone then suggested that Ada translate them into English, as she was fluent in French and other languages. She showed the translation to Babbage, who was ecstatic, and he suggested that she add her own notes because as he put it, she understood the machine so well. Ada’s footnotes tripled the paper’s original length, because she understood Babbage’s device, but she also saw further. She rightly saw it as what we would now call a general purpose computer. For Babbage, these machines were nothing more than calculators, but Ada saw past that. She understood that a machine capable of manipulating numbers—and of representing any value, from letters to musical notes—would have a grip on a world beyond mathematical calculation. Crucially, Ada’s vision for computing recognised that technology must be applied for, in her words, “the purposes of mankind.” Technology must serve humanity, not the other way around. At the time, Ada’s ideas amounted to little more than a vision. Let us remember that she was working in the 19th century, before there were even any functional computers. Her work was not revisited until nearly a century later, when Alan Turing quoted her in his work.