Re: Victorian computing
The signalling might be thought of as that... but it's the railway itself I was referring to, with the information about the train being considered as an analogy to header information and the train as the payload. There's an element of the whole route of the train being known in advance, akin to circuit switching, but during the journey the route is set block by block in response to information "carried" by the train, akin to packet switching. Though the train is not broken up and arrivies at its destination in one pieces rather than needing to be reassembled... apart from the old system of slip coaching of course which sounds like a horrendous idea.