Fundamental difference between classical and quantum mechanics

[peps]

What are some of the fundamental differences between Classical & Quantum mechanics?

[harmeet_angel]

What are some of the fundamental differences between Classical & Quantum mechanics?

maybe if classical is an old computer or a car then quantum mechanics would be a new computer or an airplane?

[VinnyCee]

I think it is like the difference between classical (ie - Newtonian) physics and quantum physics. Something about Max Planck, and as always, there is a good wikipedia article (http://en.wikipedia.org/wiki/Quantum_mechanics) about this stuff.