Schmidt, Cheryl, Todd Meadors-Rajkumar, and Bill Davis. Operating Systems: A Systematic View. Boston, Mass.: Pearson Custom Publishing & Education, 1977.
Rafiquzzaman, Mohamed. Fundamentals of Digital Logic and Microcomputer Design. "Intel and Motorola 32- & 64-Bit Microprocessors," pp. 543–619.
Groth, David. A+ Complete Study Guide. San Francisco: Sybex Books, 2003. Chapter 2, "Motherboard, CPUs and RAM." Beals, R.P. PC Systems, Installation and Maintenance. Amsterdam, Boston: Elsevier, 2004. Part 1, Chapter 2, "The System Unit."
Shah, Ajay, Robert Mcgee, and Walter Block. Why forbid insider trading? Information, Privilege, Opportunity and Insider Trading.
Andrews, Jean. A+ guide to Managing and Maintaining Your PC. Boston, Mass.: Course Technology, a division of Thomson Learning, Inc., 2004.
Bovee, C. L. & Thill, J. V. (2006). Business in action (3rd ed.). Upper Saddle River, NJ: Pearson Education, Inc.