In a book by John Dee he notes that a CPU is required what is the name of this book and what kind of CPU is needed?

John Dee did not write about CPUs, as he lived in the 16th century, long before the invention of computers. It seems there may be a misunderstanding or confusion regarding authorship or context. If you meant to refer to another author or a specific book related to computing, please clarify, and I would be happy to help!