Fujitsu (Fujitsu) formally crossed the field of quantum computing, and published the latest quantum computing technology, --Fujitsu Digital Annealer, in the "2018 Fujitsu forum" that was held in front of the day. Digital Annealer combines the latest technology of traditional operation and quantum operation and the design of digital circuit structure based on the concept of quantum computing. It can use large data for combinatorial optimal calculus at high speed and effectively. The future is expected to be applied in many aspects, including medical research, financial investment, inventory management, digital marketing and so on. Field.