Probably the first programmable computer in the world!
The first machine designed to break the Lorenz was built at the Post Office research department at Dollis Hill and called ‘Heath Robinson’ after the cartoonist designer of fantastic machines. Although Heath Robinson worked well enough to show that Max Newman’s concepts were correct, it was slow and unreliable.
There's a video at:
www.bletchleypark.org.uk/colosusfilm.rhtm
