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William Stallings has made a unique contribution to understanding the broad sweep of technical developments in computer networking and computer architecture. He has authored 17 titles, and counting revised editions, a total of over 40 books on various aspects of these subjects. In over 20 years in the field, he has been a technical contributor, technical manager, and an executive with several high-technology firms. Currently he is an independent consultant whose clients have included computer and networking manufacturers and customers, software development firms, and leading-edge government research institutions. His LinkedIn Profile was one of the top 5% most viewed LinkedIn profiles for 2012.

Thirteen times, he has been the recipient of the award for the Best Computer Science and Engineering Textbook of the Year from the Textbook and Academic Authors Association: Computer Organization and Architecture, Ninth Edition (2013); Operating Systems, Sixth Edition (2009); Computer Security (with Lawrie Brown, 2008); Data and Computer Communications, Eighth Edition (2007); Computer Organization and Architecture, Seventh Edition (2006); Operating Systems, Fourth Edition (2002); Computer Organization and Architecture, Sixth Edition (2003); Operating Systems, Fourth Edition (2002); Computer Organization and Architecture, Fifth Edition (2000); Cryptography and Network Security, Second Edition (1999);Operating Systems, Third Edition (1998); Data and Computer Communications, Fifth Edition (1997); Computer Organization and Architecture, Fourth Edition (1996). In addition, he has won the TAA longevity award for consistent long-term excellence five times: Cryptography and Network Security, Fifth Edition (2011); Business Data Communications, Fifth Edition (2005); Computer Organization and Architecture (2002); Local and Metropolitan Area Networks (2001); and Data and Computer Communications (2000).

Bill has designed and implemented both TCP/IP-based and OSI-based protocol suites on a variety of computers and operating systems, ranging from microcomputers to mainframes. As a consultant, he has advised government agencies, computer and software vendors, and major users on the design, selection, and use of networking software and products.

Bill created and maintains the Computer Science Student Resource Site at This site provides documents and links on a variety of subjects of general interest to computer science students (and professionals). He maintains a Twitter account at

He is a member of the Advisory Board of In that capacity, he consults on communications, networking, and security issues related to family of products. provides software solutions for identity management, secure communications, cloud perimeter security, and VoIP security, for government agencies and commercial enterprises.

He is a member of the editorial board of
Cryptologia, a scholarly journal devoted to all aspects of cryptology. He is a frequent lecturer and author of numerous technical papers.

Dr. Stallings holds a PhD from M.I.T. in Computer Science and a B.S. from Notre Dame in electrical engineering.
interview with Bill was published in the November 2004 issue of ACM Crossroads.