@paul-prudence
The Pilot ACE, 1950s
One of the most beautiful computers ever made. It was one of the first computers built in the United Kingdom - at the National Physical Laboratory (NPL) in the early 1950s. It used mercury delay line memory, which is two wavelengths short of alchemy.
At the amazing Docubyte
https://www.docubyte.com/works/guide-to-computing/