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Western Digital and the IDE Interface - Building upon Expertise

Western Digital's Enhanced IDE technology evolves from the company's storage expertise within the personal computer marketplace. In 1984, Western Digital developed the WD1002 floppy and ST506 interface hard disk controller that IBM utilized in their PC/AT systems. The success of the PC/AT architecture led to the massive growth of the IBM PC/AT compatible market. This dramatic growth was in part fueled by WD1002 compatible hard disk controllers and later by Western Digital's standard-setting WD1003 series of AT controllers.

As the market expanded and became more price sensitive, Western Digital defined the need for integration of the AT controller electronics within the disk drive. By working with Compaq Computer Corporation, Western Digital again drove the technology by proposing the IDE (Integrated Drive Electronics) interface which was implemented in the industry's first IDE drive in 1986. The disk drives used in personal computers have standardized around IDE since this introduction.


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