Conventional computer designs are identical in principle to those of the 1940s, only smaller and faster. Beyond this conventional technology lies a new, barely explored realm of quantum computing, which works on fundamentally different principles. Among these is the property of superposition, which means that a quantum device can be in more than one logical state at the same time.

This enables quantum computers to do things such as running programs on multiple data sets simultaneously. In areas such as information security and codebreaking, the special properties of quantum logic can achieve results that are impossible with traditional computing. Some simple quantum computers have already been built.

Ultimate Zero and One is an introductory book that explains the basic principles of quantum computing and their applications in solving various problems. Although written for the non-specialist, it may require considerable effort to understand. Basic knowledge of the principles of quantum mechanics and first-year university level mathematics can make it easier to follow, although prior knowledge is not necessary if you have the time and inclination to learn some of these as you go along.

This is a book that needs a bit of commitment, but nutting your way through the hard bits will give you insight into an emerging technology that is likely to become increasingly important in coming decades.