![]() Such basic motherboards could have been outfitted with either the ST-506 or ATA interface, but usually not both. They were replaced by SATA interfaces.Įxample of a 1992 80386 PC motherboard with nothing built in other than memory, keyboard, processor, cache, realtime clock, and slots. Called the "primary" and "secondary" ATA interfaces, they were assigned to base addresses 0x1F0 and 0x170 on ISA bus systems. Physical ATA interfaces became a standard component in all PCs, initially on host bus adapters, sometimes on a sound card but ultimately as two physical interfaces embedded in a Southbridge chip on a motherboard. When a newer Serial ATA (SATA) was introduced in 2003, the original ATA was renamed to Parallel ATA, or PATA for short. The "AT" in the IBM PC/AT referred to "Advanced Technology" so ATA has also been referred to as "Advanced Technology Attachment". The original ATA specifications published by the standards committees use the name "AT Attachment". The standard was originally conceived as the "AT Bus Attachment," officially called "AT Attachment" and abbreviated "ATA" because its primary feature was a direct connection to the 16-bit ISA bus introduced with the IBM PC/AT. 5.1 ATAPI Removable Media Device (ARMD).5 Related standards, features, and proposals.4.1 Features introduced with each ATA revision.4 ATA standards versions, transfer rates, and features.2.6 Two devices on one cable-speed impact. ![]()
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