The philosopher of technology Lewis Mumford argued that the origin of modern industrial machines goes back further than the Industrial Revolution and Renaissance, all the way back to the regimented and time-based lives of medieval monks. Knocker uppers seem like a direct obvious example of this phenomenon of humans as proto machines. https://en.wikipedia.org/wiki/Lewis_Mumford https://bpb-us-e1.wpmucdn.com/sites.psu.…
Reading about world war 2 has given me a new appreciation for just how manual everything was. It's amazing that the Allies managed 2 major amphibious landings in June 1944: Normandy was one, Saipan the other. Saipan was about a thousand miles from the nearest Allied forward base, and >3000 miles from Pearl Harbor! All that with slide rules, typewriters, mimeographs, and filing cabinets.
Well they did have radios, telephones and radar as well. The fire control systems of battleships and anti-aircraft guns led to massive advances in distributed analogue computing that provided early insights into human/machine interactions as well as the beginnings of system-level architecting. The Brits during the Battle of Britain exploited telephone networks and switchboards in innovative ways to create a highly fault (bomb) tolerant decentralised command and control system that formed an early version of the sensor-to-shooter kill chains we see today.