If you're left wanting a high-level technical explanation, the Wikipedia page seems to be a decent one http://en.wikipedia.org/wiki/Bitcoin#Technology http://en

If you're left wanting a high-level technical explanation, the Wikipedia page seems to be a decent one http://en.wikipedia.org/wiki/Bitcoin#Technology http://en.wikipedia.org/wiki/Bitcoin#Technology (Answered some fairly obvious questions I was left with after reading like "how do they aim to stop someone from spending the same coin everywhere and then disappearing before anyone else notices?")