George Toft wrote:
>
> William Lindley wrote:
> > * make sure the floppy is in the end of the cable after the
> > twist (due to IBM's 1981 decision to include only a 62 Watt
> > power supply which couldn't support both floppy drive motors
> > being on at once, and the clone makers who have slavishly
> > followed that brain-damaged design down to the present day)
>
> The reason the drive cable had the twist was for inventory
> reduction. All drives are set to DS1 (drive B) so IBM wouldn't
> have to carry drives pre-selected to DS0 and DS1. IBM didn't
> trust the technicians to move the jumper.
This is true.. I verified this fact once back around 1990, on a Tandy
1000 I had dug out of the trash at high school. I had one cable for
the floppy, and it didnt have a twist. When I added a second floppy
(that sat on top of it), I just spliced a plug into the cable, but had
to change the jumper position.
--
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