History and Terminology
The PATA standard was originally conceived as the "PC/AT Attachment" because its primary feature was a direct connection to the 16-bit ISA bus introduced with the IBM PC/AT. The "AT" in "IBM PC/AT" refers to "Advanced Technology," but the ATA specifications simply use the name "AT Attachment", to avoid possible trademark issues with IBM.
Read more about this topic: Parallel ATA
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“We know only a single science, the science of history. One can look at history from two sides and divide it into the history of nature and the history of men. However, the two sides are not to be divided off; as long as men exist the history of nature and the history of men are mutually conditioned.”
—Karl Marx (1818–1883)