Introduction to ATA technology Parallel ATA technology is a series of technical specifications about IDE (Integrated Equipment Electronics). At first, IDE was just a hard disk interface technology, and its main purpose was to integrate the controller with the disk. With the more and more extensive application of IDE/EIDE, the technical specifications used by the interface since its birth are summarized into the global hard disk standard by the global standardization protocol, thus ATA (Advanced Technical Attachment) is produced.