計算機概論

As always when planning a revision, we asked our colleagues, including many current users of the text, to give us feedback. We appreciate the many thoughtful and insightful responses. we received. A variety of changes have been made throughout the book with the Eighth Edition.

The summary of the ACM Code of Ethics was changed in Chapter 4 to be a more representative set of guidelines. The laptop specification in Chapter 5 was completely updated with the corresponding changes throughout the discussion of hardware and software components, including an up-to-date emphasis on solid-state disks.

Three new sections were added to Chapter 12:  Cryptocurrency, Blockchain (moved from Chapter 17 and updated), and NFTs.

In Chapter 17, the section on Fingerprint Analysis was updated to include Facial Recognition and a new section on Two-Factor Authentication was added.

In addition, the special features throughout the book have been revised and augmented. The "Ethical Issues" sections at the end of each chapter have been brought up to date, addressing the ever-changing state of those issues. Several "Did You Know?" sidebars have been updated. Finally, the biographical sketches throughout the book have been updated.

As with each edition, the entire text has been reviewed for opportunities to improve the coverage, presentation, and examples used. Updated (and sometimes streamlined) text throughout the book helps to clarify the topics presented.

●Updated to latest AP CS Principles
●New section on cryptocurrency
●Expanded coverage of blockchain, cybersecurity attacks, and e-commerce
●Navigate Advantage includes the following student resources: Supplemental programming chapters, animations, and additional Study Aids (Flash cards, Practice Quizzes, Learning Objectives, Lecture Outlines)  
●Cloud Desktop and companion lab exercises are available on Navigate, which include 23 different lab exercises on topics such as programming, databases, networking, and more
●Instructor resources include answers to-text questions, slides in PowerPoint, Test Bank and AP CS Principles Mapping Guide

Nell Dale, PhD - University of Texas, Austin
Nell Dale received a B.S. in Mathematics and Psychology from the University of Houston, a M.A. in Mathematics, from the University of Texas at Austin, and a Ph.D. in Computer Sciences from the University of Texas at Austin. Nell Dale has been on the faculty at the University of Texas, Austin since 1975. She teaches occasionally but concentrates on computer science education, writing, traveling, tennis, and bridge -- and her family of course.

John Lewis, PhD - Virginia Tech, Blacksburg, Virginia
John Lewis is a leading educator and author in the field of computer science. He has written a market-leading textbook on Java software and program design. After earning his undergraduate degree, M.S., and Ph.D. in computer science at Virginia Tech, John joined the faculty of the Department of Computing Sciences at Villanova University. He has received numerous teaching awards, including the University Award for Teaching Excellence and the Goff Award for Outstanding Teaching. His professional interests include object-oriented technologies, multimedia, and software engineering. In addition to his teaching and writing, John actively participates in the Special Interest Group on Computer Science Education (SIGCSE), and finds time to spend with his family or in his workshop.

Laying the Groundwork
  Chapter  1  The Big Picture
The Information Layer
  Chapter  2  Binary Values and Number Systems
  Chapter  3  Data Representation
The Hardware Layer
  Chapter  4  Gates and Circuits
  Chapter  5  Computing Components
The Programming Layer
  Chapter  6  Low-Level Programming Languages and Pseudocode
  Chapter  7  Problem Solving and Algorithms
  Chapter  8  Abstract Data Types and Subprograms
  Chapter  9  Object-Oriented Design and High-Level Programming Languages
The Operating Systems Layer
  Chapter  10  Operating Systems
  Chapter  11  File Systems and Directories
The Applications Layer
  Chapter  12  Information Systems
  Chapter  13  Artificial Intelligence
  Chapter  14  Simulation, Graphics, Gaming, and Other Applications
The Communications Layer
  Chapter  15  Networks
  Chapter  16  The World Wide Web
  Chapter  17  Computer Security
In Conclusion
  Chapter  18  Limitations of Computing