THIS EDITION HAS BEEN REPLACED BY THE NEW THIRD EDITION, ISBN 0972380183.
The revised edition was published in 2008 so it includes none of the later technology that is present in most working PCs.
If you've been assigned this book as a text or a lab book in your college class or in a PC technician training program, check with your instructor to see if you can use the third edition instead. The Third Edition is expanded approximately 50% over the previous edition, with new decision points, text, and some reworked flowcharts.