The IDE Interface
Originally written by
- Originally designed by Western Digital (~1986)
- Was used in the cheaper PC market.
- The controller is part of the disk drive
- So the "controller" on the host was a simple bridge (pass-through)
- The ATA protocol was sector-based with simple read and write commands.
- which was different then its predecessors (ST-506 and ESDI).
- The max cable length was short
- So it was used for internal storage.