The purpose of this book was to provide a roadmap for the reader on the processes and considerations for building new computer architectures to support the emerging consumer market. Many of us believe that the advent of 6G will be a major technical development that will dramatically accelerate the way businesses and individuals use and depend on digital technologies. The book has integrated two essential challenges to designing and developing these new systems: the technical components that comprise the physical machines and devices; and the various approaches to migrating the vast number of legacy systems that run the day-to-day organizations throughout the world.