How a Hard Drive Works shows with full color illustrations, the main functions and operations of a primary internal hard disk drive. The hard disk drive is the primary device used for storing data. Every personal computer has a hard drive built into the machine. Reading data from the hard disk is shown with full color illustrations. The workings of the E-IDE controller are explained. Writing data to the hard disk is shown with full color illustrations. The file allocation table, sectors, tracks and clusters are covered in How a Hard Drive Works. This book will be useful to students and anyone else wishing to learn about How a Hard Drive Works.