Although current quantum computer technology is distant from being able to solve computational problems beyond the reach of non-quantum computers, experiments have progressed well beyond simply demonstrating the requisite components. A quantum computer, on the other hand, has a unique way of sorting through possible solutions and can have an answer in a matter of minutes! Quantum computer technology is progressing rapidly with dozens of qubits and hundreds of quantum logic gates now possible. Here is how to build one. The first step in building a quantum computer is figuring out how traditional computers work. Quantum Computer DIY.