"Computer science is no more about computers than astronomy is about telescopes" said Edsger Dijkstra.
I have always been interested in the two sides of computing:
- Information processing
In the early ages of computing, we tend to focus on the first machines and their calculus properties. Charles Babbage inventions are famous.
But in the early 19th century, the pioneer was also interested in information processing and transactions. Reading an article I discovered he described the processes involving bank transactions in one of his works: On the Economy of Machinery and Manufactures.