From: Spiro Trikaliotis (trik-news_at_gmx.de)
Date: 2003-11-21 18:00:39
Hello Ethan,
On Fri, Nov 21, 2003 at 10:41:47AM -0500, Ethan Dicks wrote:
> > I totally forgot: Obviously, this is not an IDE interface, but a
> > kind of MFM controller.
>
> Well... the AT-IDE controller is a bundled WD-1003, so from that
> standpoint, *all* PC IDE controllers are a kind of MFM controller.
Well, yes. I know that they are from a programmer's point of view, but
not from a hardware point of view, as the HD controller was integrated
into the HD (and essentially, the ISA bus was served over a flat
cable).
> > IDE is much newer and wasn't known at times of XT [1]
>
> Sure it was... just very late.
Yes, as the statement below tells, I was aware that it was known at XT
times, but:
> > [1] This is not totally true. Some might remeber the days where IDE
> > was called "AT-bus". In fact, there was even an "XT-bus"
> > specification, but I don't know any real hardware for that one.
>
> How about the Commodore Colt? I have one (dead at the moment, due
> to a leaking clock battery). How about the Amiga A590? A2091?
> The 40-pin connector on the A590 and A2091 is for an XT-IDE drive.
> ISTR one such drive was the WD 93028X (could be slightly off; it's
> from memory).
I did not know that they were used. In fact, my first PC was a 286/12.
As I never owned an Amiga or something like that, I was not aware that
they were common with this machines. Thanks for the clarification!
Spiro.
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