Richard F. Gilberg has more than 40 years of computer science experience in industry and academia. His industrial experience includes the development of large application systems, database administration, system testing, and data administration. After leaving the industry, he joined De Anza College as a professor of computer science. In addition to this text, he has also co-authored several others including Computer Science: A Structured Approach Using C, Computer Science: A Structured Approach Using C++, and Data Structures: A Pseudocode Approach with C++. Behrouz A. Forouzan has more than 38 years of electronics and computer science experience in industry and academia. His industry experience includes designing electronic systems. After leaving the industry, he joined De Anza College as a professor of computer science. In addition to this text, he has authored and co-authored nine other textbooks including: Computer Science: A Structured Approach Using C, Computer Science: A Structured Approach Using C++, and Data Structures: A Pseudocode Approach with C++, as well as titles on Data Communication and Networking, and TCP/IP Protocols.