PREFACE xiii


the syllabus of CO-2* (I/O and Memory Systems) as a model, this could be a primary text, provided that material on other manufacturers' computers is made available to show different viewpoints.

We gratefully acknowledge our contributing authors, whose insights have greatly enhanced the scope of this book, and our colleagues at DEC, who assembled information, and provided subject matter expertise and advice.

We would like to thank R. Eckhouse, R. Glorioso, S. Fuller, J. Lipovski, and P. Jessel whose critiques of the preliminary drafts of the introductory chapters and book outline proved very helpful. We would also like to thank J. Cudmore, R. Doane, R. Elia-Shaoul, S. Fuller, L. Gale, L. Hughes, R. Peyton, and S. Teicher, who provided data for Chapter 2 and valuable critiques of earlier drafts. We also acknowledge the reviewers of the second draft of the manuscript, to whose criticisms we have especially tried to respond. We received instructive comments and evaluations from D. Aspinall, G. Blaauw, R. Clayton, D. Cox, J. Dennis, P. Enslow, D. Freeman, J. Grason, J. Gray, W. Heller, G. Korn, J. Lipcon, J. Mar shall, E. McCluskey, C. Minter, M. Moshell, B. Organick, W. Schmitt, B. Schunck, I. Sutherland, J. Wakerly, and J. Wipfli. We would like to extend special thanks to H. Stone for his extensive and particularly useful review comments.

We are also indebted to many for their support in producing Computer Engineering. We are particularly indebted to Heidi Baldus of Digital Press who coordinated the production of Computer Engineering and whose encouragement kept us going through a number of difficult times. For their expertise and patience, we thank the Technical Documentation group, especially Denise Peters. We also thank Mary Jane Forbes and Louise Principe for their constant support in the course of this book's development and production. The manuscript creation and preparation on the DEC Word Processing System, followed by transmission to the DECset-8000 Typesetting System, permitted numerous drafts and rapid creation of the final typeset material.