Something new under the sun. We had Aristotelian logic, and towards the end of the 19th Century boolean logic too, but nobody applied it to electrical circuitry until the 1930s. Once they did it led to an explosion of the logical inner world that is computing, the development of programming languages, operating systems, Internet communication and the replacement of craft after craft with computerised versions.

Operating Systems

Instant Messenger Systems

Games

Commander Keen

Cryptography

Other