John McCarthy, inventor of Lisp and father of modern artificial intelligence, dead at 84

It’s been a bad month for the second wave of computer pioneers:

For those of you who don’t know, the Turing award is the closest thing that computer science has to a Nobel prize. While McCarthy wasn’t quite as influential as Jobs or Ritchie on the average programmer’s work, there’s no doubt whatsoever that his work had a huge impact on the modern world.

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Original Tweet here.

It’s pretty remarkable what an influence he had on computer science. The first paper on garbage collection, the Lisp programming language, pioneered the science of knowledge representation, etc.

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Already posted just down the page.

Merged duplicate threads.

I don’t know about that. Lisp was the first garbage collected language, the first language with an if-then-else construct, the first language that allowed re-entrant functions (in early version of Cobol and Fortran functions could not be recursive), the first dynamically typed language, and so on.