“What is node.js? For the technical audience, Joyent’s Ryan
Dahl’s (the original author) presentation is an excellent place to
start. Wikipedia describes Node.js is an evented I/O framework for
the V8 JavaScript engine (yes, the one that ships with Chrome),
while Dahl’s deck describes it more prosaicly as a ‘set of bindings
to the V8 javascript VM’ that allows developers “to script programs
that do I/O in javascript. Conceptually, it’s not dissimilar to
EventMachine or Twisted, but node.js takes the concept further