Individual chapters within each layer focus on particular aspects of thatlayer. The next section provides a synopsis of each chapter.The design of this book is extremely modular. The layered view of acomputing system provides flexibility to instructors who may choose toemphasize topics differently or place them in a different order. We revisit theonion analogy at the opening of each chapter, showing how the currentdiscussion fits into the big picture.SynopsisThe first and last chapters of the book form bookends: Chapter 1 describeswhat a computing system is and Chapter 17 explores what computing systemscannot do. The chapters in between look in depth at the layers that makeup a computing system and explain, one step at a time, how a computer doeswhat it does.Chapter 1lays the groundwork for the rest of the book, establishingterminology and explaining the history of computing. The evolution of thehardware and software levels that make up the history of computing systems
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Computer program, George Pólya, book form bookends