Quantum computers are currently taking over the world. They are available from Google, IBM, Rigetti, and there are annealers from D-Wave and Fujitsu. A variety of startups are developing the latest approaches and technologies. It is possible to buy such machines or rent computing time via the cloud. As a co-processor it is supposed to complement high-performance computers. At the same time, there are discussions about the quantum advantage and the economy is waiting for the possibility to solve tasks that are unsolvable today, to get a faster and better performance.