Neuromorphic hardware is an area where I encountered analogue computing [1]. Biological neurons would be modeled by a leaky integration (resistor/capacitator) unit. The system was 1*10^5 times faster than real-time—too fast to use it for robotics—and consumed little power but was sensitive to temperature (much as our brains). If I recall correctly, the technology has been used at cern, as digital HW would have required too high clock speeds. I have no clue what happened to the technology but there were other attempts at neuromorphic, analogue hardware. It was very exciting to observe and use this research!
[1]https://brainscales.kip.uni-heidelberg.de/
edit: newer link: https://open-neuromorphic.org/neuromorphic-computing/hardwar...