Possible to speed up I/O subsystem of 5150?

[Patrick Finnegan]

On Wednesday 15 December 2004 19:45, Paul A. Pennington wrote:
>     There was one 8-bit ISA hard disk controller card for the IBM PC
> or XT that would do a 1:1 interleave, from Patterson Labs.  Don't
> know how they did it, but they worked.  They were always unusual,
> probably impossible to find today, but Google it.
>
>     RLL was way too fast for the PC/XT bus at 1:1 interleave, but
> there was at least one 8-bit controller from Seagate that worked with
> only one 30 MB IDE drive.  I don't remember the numbers.  They would
> work with a higher interleave, 3 or 4 sounds about right.
<snip>

Why not just get a SCSI controller?  Surely you can get an AHA-1542 or 
something to work on an 8-bit bus, and it'll probably have better 
performance (and easier to find disks) than any IDE or MFM/RLL (ST-506) 
controller for the era.

Pat
-- 
Purdue University ITAP/RCS        ---  http://www.itap.purdue.edu/rcs/
The Computer Refuge               ---  http://computer-refuge.org