This is the transcript of a talk I gave at WriteTheDocs Australia, in Melbourne, on 15 November, 2018. A video is also available, see the Videos page for a link.
This little story starts with the American son of German migrants, Herman Hollerith. He was born in 1860, got a degree in engineering, and then went to work in the US Census Bureau in 1879. At that time, the census was just a headcount, they didn’t collect any real data on the population, simply because they didn’t have the ability to process that information. As it was, they only ran a census every ten years, and it took them several years to process all the information. This meant that the big concern of the department is that before too long it was going to take them longer than ten years to do the calculation, meaning the next census would have started before the last one was complete.
These days, we call that overwhelming technical debt.
So young Master Hollerith was a bit of a bright spark, says “there ought to be a machine for doing the purely mechanical work of tabulating” and set out to build one. By 1884, he had a prototype, and the US Census Bureau used the machines for the 1890 census.