On 10/3/17 12:09 PM, Fred Cisin via cctalk wrote:
Scott Mueller mentions it in his "Upgrading And Repairing PCs"
http://www.informit.com/articles/article.aspx?p=2028834

He said that "IDE" was a "marketing term", with "ATA" being the "official" name.  Which is pretty much the same as the discussion here, with both terms being used concurrently, without a clear comparison of the histories of their origins.

"Which came first?  The formal name?  or the street name?"


His stuff tends to be fairly accurate. Although he specifically mentions the Wren II, he makes a statement that the HARDCARD were the earliest IDE.  (Not quite what we were discussing)

He uses IDE as being very general, with ATA being very specific, and thus opening up tems such as "ATA IDE" and "pre-ATA IDE" But, by using IDE so loosely as to include HARDCARD, he avoids explicitly declaring IDE as the SPECIFIC interface, to have existed prior to ATA.

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. https://en.wikipedia.org/wiki/Parallel_ATA#ATA_standards_versions.2C_transfer_rates.2C_and_features


The whole issue is complicated by the terms only being used in advertising and spec sheets, since drives of that time never mentioned their interface type/name on the drive itself. Thus, finding the relevant drive on a shelf doesn't answer any of the questions, and it remains a search of User Manuals and advertising.
NOTE: on the ST157, there is a WARNING label to not low level format.


As always, "FIRST" in history is muddled!
"FIRST" to be mentioned
"FIRST" to be OFFICIALLY mentioned
"FIRST" to be advertised
"FIRST" announced
"FIRST" released
"FIRST" to be manufactured
"FIRST" to be shipped
"FIRST" to be standardized
. . . "FIRST" to end up on my bench.

I am continuing to investigate, but I think that IDE came first. I have found references that describe the Compaq/WD/CDC Wren II HH disk (which pre-dates the formation of the SCSI-2 CAM committee) as "IDE". Some of this reportedly comes from the people who did the work (years after the fact). However, I have yet to find period documents that include the term "IDE". I don't know if the people who did the work used the term at the time or were applying it after the fact.

Here are a couple documents that I used as starting points -

http://chmss.wikifoundry.com/page/Compaq%2FConner+CP341+IDE%2FATA+Drive
http://web.archive.org/web/20081004160101/http://www.ata-atapi.com/histcam.html

alan

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