I don't know what @drakaal is trying to say, but here is the wikipedia page on non-blocking algorithms. http://en.wikipedia.org/wiki/Non-blocking_algorithm htt

I don't know what @drakaal is trying to say, but here is the wikipedia page on non-blocking algorithms. http://en.wikipedia.org/wiki/Non-blocking_algorithm http://en.wikipedia.org/wiki/Non-blocking_algorithm Node.js is said to run an a single-threaded "non-blocking" event loop. Whenever i/o is performed, you give a callback which is invoked when the i/o is completed, either with success or error.