The origin of the phrases ATA and IDE [WAS:RE: formatting MFM

Chuck Guzis cclist at
Tue Oct 3 14:24:30 CDT 2017

On 10/03/2017 12:09 PM, Fred Cisin via cctalk wrote:

> Also, of course, "pre-ATA IDE" can mean IDE prior to the ATA
> standard release, rather than prior to the early use of "ATA" as a
> name. 

Indeed, you can still find "XTA IDE" and "ATA IDE" mentioned in
literature.  That is, the generic term for an integrated hard drive
interface was IDE, with modifiers XTA and ATA.

At one time, this was important to differentiate the mutually
incompatible  XT interface 8 bit IDE drives from the 16 bit AT interface

As an aside, many early ATA IDE drives could perform 8 bit transfers,
but that hasn't been true in perhaps 20 years or more.  However, 8 bit
transfers are AFAIK, still a requirement for CF cards.


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