MFM/RLL data recovery

Fred Cisin cisin at xenosoft.com
Wed Apr 6 16:18:20 CDT 2005


On Wed, 6 Apr 2005, Bill Allen Jr wrote:
> Hmm,
> He states "i am useing a floppy cable with a twist in
> it and a 20 pin data cable."
> hard drives did not use a twisted cable on them.

IBM DID use a twisted cable for hard drives!
It was not the same twist as the floppy cable.
If IBM hadn't used a twisted cable, (or a cable with missing pins ala RS)
then they would have had to teach their people about drive select jumpers!

> the used a 34 pin (data) and a 20 pin(control)
> streight thru cable(s.

The IBM 34 pin WAS twisted.  It was not the same twist as the floppy
cable.


--
Grumpy Ol' Fred     		cisin at xenosoft.com


More information about the cctalk mailing list