30 May
2007
30 May
'07
8:24 p.m.
I think I've even asked this question before, but got
no response. Or at least no suitable ones. Hosers.
Though I was recently told that the first IDE card
appeared in a Compaq Deskpro. Can anyone confirm or deny?
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30 May
30 May
10 p.m.
--- Chris M <chrism3667 at yahoo.com> wrote:
I think I've even asked this question before, but
got
no response. Or at least no suitable ones. Hosers.
Though I was recently told that the first IDE card
appeared in a Compaq Deskpro. Can anyone confirm or
deny?
Well, if you want to get technical (and I do)... IDE
is nearly an extention of the ISA bus. Some of the
earliest and/or cheapest IDE controllers were mostly
buffers to connect the drive to the ISA bus. IDE
stands for Integrated Drive Electronics. So, kinda
like an MFM controller and drive bolted together, with
a 40 pin connector leading back to the ISA bus.
Now, obviously this is over-simplifying the whole
thing, but it's not _too_ far off.
And yeah, I think the earliest machine I ever saw with
an IDE drive was a Compaq Deskpro 286. There was a
flavor of IDE for XT class machnes too - the drives
aren't really compatible with AT class IDE, however.
-Ian
10:14 p.m.
At 09:00 PM 5/30/2007, Mr Ian Primus wrote:
And yeah, I think the earliest machine I ever saw with
an IDE drive was a Compaq Deskpro 286. There was a
flavor of IDE for XT class machnes too - the drives
aren't really compatible with AT class IDE, however.
http://en.wikipedia.org/wiki/Advanced_Technology_Attachment
http://www.ata-atapi.com/hist.htm
- John
10:42 p.m.
On 30 May 2007 at 21:14, John Foust wrote:
I may still have a Wren II in my old drive collection. It wasn't a
great drive.
When someone says CAM to me, I think of the SCSI interface standards
group of which Future Domain and DEC were members. AFAIK, no IDE
host adapter ever implemented *that* spec. CAM, compared to ASPI, is
much more complex.
In the beginning it was *interesting* working with different vendor
implementations of ATA. For example, Maxtor, initially swapped the
order of the words in the "total number of sectors" field in the
IDENTIFY command return.
Cheers,
Chuck
31 May
31 May
12:30 a.m.
Chuck Guzis wrote:
On 30 May 2007 at 21:14, John Foust wrote:
I may still have a Wren II in my old drive collection. It wasn't a
great drive.
When someone says CAM to me, I think of the SCSI interface standards
group of which Future Domain and DEC were members. AFAIK, no IDE
host adapter ever implemented *that* spec. CAM, compared to ASPI, is
much more complex.
I think my TMS-870 and -885 support CAM. I remember seeing the
acronym in the DOS setup utility.
Doc
1:49 a.m.
I remember some old 5.25" and 3.5" "IDE" drives in Compaq 386's,
possibly
some of the later 286 machines, before any WD drives were available. The
early drives were labeled Compaq, and the company that made them for Compaq
was conner peripherals, eventually marketing the drives them selves IIRC.
12:53 p.m.
--- John Foust <jfoust at threedee.com> wrote:
At 09:00 PM 5/30/2007, Mr Ian Primus wrote:
http://en.wikipedia.org/wiki/Advanced_Technology_Attachment
Thanks, don't have time to read it over at the moment
though. Can we say then that Compaq's IDE controller
was the earliest *IDE* card that could drive a modern
(or somewhat modern) IDE device? CD/DVD drives, hard
drives, etc.?
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And yeah, I think the earliest machine I ever saw
with
an IDE drive was a Compaq Deskpro 286. There was
a
flavor of IDE for XT class machnes too - the drives
aren't really compatible with AT class IDE,
however.
12:47 p.m.
--- Mr Ian Primus <ian_primus at yahoo.com> wrote:
--- Chris M <chrism3667 at yahoo.com> wrote:
Ok, so who's going to give me one of these
controllers? Or who can furnish a schematic?
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I think I've even asked this question before,
but
got
no response. Or at least no suitable ones. Hosers.
Though I was recently told that the first IDE card
appeared in a Compaq Deskpro. Can anyone confirm
or
deny?
Well, if you want to get technical (and I do)... IDE
is nearly an extention of the ISA bus. Some of the
earliest and/or cheapest IDE controllers were mostly
buffers to connect the drive to the ISA bus. IDE
stands for Integrated Drive Electronics. So, kinda
like an MFM controller and drive bolted together,
with
a 40 pin connector leading back to the ISA bus.
Now, obviously this is over-simplifying the whole
thing, but it's not _too_ far off.
And yeah, I think the earliest machine I ever saw
with
an IDE drive was a Compaq Deskpro 286. There was a
flavor of IDE for XT class machnes too - the drives
aren't really compatible with AT class IDE, however.
30 May
30 May
10:31 p.m.
On 30 May 2007 at 17:24, Chris M wrote:
I think I've even asked this question before, but
got
no response. Or at least no suitable ones. Hosers.
Though I was recently told that the first IDE card
appeared in a Compaq Deskpro. Can anyone confirm or deny?
Card or drive? The whole ATA business was thought up, IIRC, by
Western Digital somewhere around 1986. I haven't the faintest idea
who came out with the first host adapter card. I probably wouldn't
have noticed, given the brain-dead nature (mostly some address
decodig and a couple of buffers) of the beast.
The command set belongs squarely in the ESDI camp, however.
Cheers,
Chuck
6258
days inactive
6258
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8 comments
6 participants
participants (6)
-
cclist＠sydex.com -
chrism3667＠yahoo.com -
doc＠mdrconsult.com -
geoffr＠zipcon.net -
ian_primus＠yahoo.com -
jfoust＠threedee.com