Alps DRR100C91A (1992)

finding the formula: ide as we know it

Natural selection on the bewildering variety of shapes, sizes, interfaces and head positioning technologies that characterised the pioneering days of the 1980s eventually produced a clear best answer.

The fast, simple, 3.5 inch one-third height IDE drive with voice coil and embedded servo came to dominate the market. For more than a decade, this standard formula ruled the world. In updated SATA form, it still does.