Bigelow's PC Technician's Troubleshooting Pocket Reference by Bigelow A must have for all computer techs. Includes A+ Certification checklist A complete reference for on the job PC repair and maintance Hard to find DOS reference notes with essential commands and system configurations, modem, motherboard, video,, drive, input devices and peripheral troubleshooting guide. The serious technician cannot live without this book The Table of Contents is pictured Easy to use format to help you diagnose problems right on the job Full coverage of troubleshooting, reference information and tables with only a minimum of supporting text 421 pages ISBN13 - 9780070069886 Paperback Pre-Owned - Used Selling as Very Good condition - appears to have never been read No writing Spine / binding is firm and tight From smoke-free environment Pictures are of actual item listed Never use stock photos Typically ships same day or next day