Blaauw and Brooks first develop a conceptual framework for understanding computer architecture. They then describe not only what present architectural practice is, but how it came to be so. A major theme is the early divergence and the later reconvergence of computer architectures. They examine both innovations that survived and became part of the standard computer, and the many ideas that were explored in real machines but did not survive. In describing the discards, they also address why these ideas did not make it.
The authors' goals are to analyze and systematize familiar design alternatives, and to introduce you to unfamiliar ones. They illuminate their discussion with detailed executable descriptions of both early and more recent computers. The designer's most important study, they argue, is other people's designs. This book's computer zoo will give you a unique resource for precise information about 30 important machines. Armed with the factors pro and con on the various known solutions to design problems, you will be better able to determine the most fruitful architectural course for your own design.