Leading problem -- Drive and memory problems are the leading technical problems with computers and this book focuses specifically on that point. It includes error codes and messages difficult to find elsewhere. A Quick Reference -- Unlike other "pocket references" which attempt to serve as miniature textbooks, this book is intended to provide concise, no-frills procedures and explanations. A reader can quickly find the answers to their drive and memory problems and questions. Handy, portable design -- The small trim size makes these books great for techniicans in the field.