for Information Technology AT Attachment with Packet Interface - 7 Volume 1 - Register Delivered Command Set, Logical Register Set (ATA/ATAPI-7 V1) - Volume 2 - Parallel Transport Protocols and Physical Interconnect (ATA/ATAPI-7 V2) - Volume 3 - Serial
This standard specifies the AT Attachment Interface between host systems and storage devices. It provides a common attachment interface for systems manufacturers, system integrators, software suppliers, and suppliers of intelligent storage devices.