To be clear, this is just a classical computer component but leveraging a quantum effect (Josephson junction, which can be sensitive to a single quantum of magn

To be clear, this is just a classical computer component but leveraging a quantum effect (Josephson junction, which can be sensitive to a single quantum of magnetic flux) for its operation. Quantum computers are very different in that they maintain a non-classical state throughout many components, allowing certain kinds of matrix calculations to be solved significantly faster than is possible for any classical machine, analog or digital. (Although quantum solutions have a stochastic nature and there are other caveats to quantumness that potentially stand in the way of actually exceeding classical computers).