Interesting. And Jevons himself was a pretty interesting guy, from a hacker's point of view: he built the "Logic Piano", a mechanical calculating device for Boo

Interesting. And Jevons himself was a pretty interesting guy, from a hacker's point of view: he built the "Logic Piano", a mechanical calculating device for Boolean logic statements, which effectively generated truth tables: http://www.rutherfordjournal.org/article010103.html http://www.rutherfordjournal.org/article010103.html http://history-computer.com/ModernComputer/thinkers/Jevons.html http://history-computer.com/ModernComputer/thinkers/Jevons.h... The actual machine is largely regarded as pretty much useless (as his contemporary Venn pointed out - see the second link), but it does make him possibly the first person to appreciate the combination of Boolean logic and calculating devices...