Reference Guide - Hard Disk Drives  A Brief History of the Hard Disk Drive Construction and Operation of the Hard Disk Drive Hard Disk Operational Overview Hard Disk Platters and Media Hard Disk Read/Write Heads Read/Write Head Operation Function of the Read/Write Heads Number of Read/Write Heads Floating Height / Flying Height / Head Gap Head Crashes Read/Write Head Technologies Hard Disk Head Sliders, Arms and Actuator Hard Disk Spindle Motor Hard Disk Connectors and Jumpers Hard Disk Logic Board Hard Disk Cache and Cache Circuitry Hard Disk Form Factors Hard Disk Packaging and Mounting Hard Disk Geometry and Low-Level Data Structures Hard Disk Performance, Quality and Reliability Hard Disk BIOS and Capacity Factors Hard Disk Interfaces and Configuration Hard Disk Logical Structures and File Systems Author: Charles M. Kozierok  In many ways, the read/write heads are the most sophisticated part of the hard disk, which is itself a technological marvel. They don't get very much attention, perhaps in part because most people never see them. This section takes a look at how the heads work and discusses some of their key operating features and issues. Next: Function of the Read/Write Heads

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