This book lays out the concepts necessary to understand how a computer works. For reasons of clarity, the authors have deliberately chosen examples that apply to machines from all eras, without having to water down the contents of the book. This choice helps to show how techniques, concepts and performances have evolved since the first computers.

The book is divided into five parts. The first four, which are of increasing difficulty, are the core of the book: “Elements of a Basic Architectu...

User experience design is the discipline of creating a useful and usable Web site or application that's easily navigated and meets the needs of the site owner and its users. There's a lot more to successful UX design than knowing the latest Web technologies or design trends: It takes diplomacy, management skills, and business savvy. That's where the updated edition of this important book comes in.

With new information on design principles, mobile and gestural interactions, content strategy, r...