Now, let us go back and look at the South Bridge/IO controller hub in Fig 17.1. ere is a
word ATA – what does it stand for and what does it connect to? e word ATA stands for AT
Attachment where AT stands for the AT bus (the ISA bus) which was found in the PC-AT.
is designation refers to the fact that this interface was originally designed to connect a com-
bined drive and controller directly to the 16-bit bus found in the PC-AT type computers. is
type of interface is also called IDE or Integrated Drive Electronics which is a marketing term
used by some companies to imply that the controllers of the hard disk drive have been inte-
grated onto the drive itself, instead of having it as ...
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