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Re: 3B1 disk replacement

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In article <slrnna38uq.7n6.BPdnicholsBP@katana.d-and-d.com>,
	"DoN. Nichols" <BPdnicholsBP@d-and-d.com> writes:
> On 2016-01-21, Bill Gunshannon <bill@server3.cs.uofs.edu> wrote:
>> Just out of curiosity, has anyone ever looked at any of the replacement
>> SSD systems for things like the P112, Tandy Color Computer or Z-80 based
>> TRS-80's with an eye towards making something similar that could be
>> plugged into the expansion bus of the 3B1?
> 
> 	Not I.  Are they emulating MFM drives?  I think that the Color
> Computer used SCSI, not MFM, but I may be wrong.  

I think there may have been a hard disk interface from Tandy but it would
have been MFM.  And rare.

>                                                   Mine had just
> floppies -- running OS-9.  The TRS-80 would be likely to be MFM.  

There have been third party SCSI and IDE interfaces made for the Color
Computer.  Supported by both BASIC and OS9/NirOS9 on the COCO. TRS-80s
had MFM but small, rarre and expensive.

>                                                       I must
> admit to not knowing the P112 at all.

It's a single board CP/M box, small enough to mount on the back of a disk.

> 
> 	And by "expansion bus" -- do you mean a modified 3B1 which can
> accept a second MFM hard drive?  The expansion chassis did not accept
> any disk controller to my knowledge (except perhaps the one only
> prototype SCSI card which one of the regulars of this newsgroup owned.
> 

I know this.  Thus my question.  There are addon systems for the COCO and
all of the TRS-80s and it would seem the only real difference would be the
actual interface.  I just wondeed if anyone had ever looked at any of these
to see if they could be adapted as currently the 3B1 suffers from the same
problem, a dearth of usable disk drives and lack of reliability of those
that exist.

bill

-- 
Bill Gunshannon          |  de-moc-ra-cy (di mok' ra see) n.  Three wolves
billg999@cs.scranton.edu |  and a sheep voting on what's for dinner.
University of Scranton   |
Scranton, Pennsylvania   |         #include <std.disclaimer.h>   

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Thread

3B1 disk replacement bill@server3.cs.uofs.edu (Bill Gunshannon) - 2016-01-21 18:52 +0000
  Re: 3B1 disk replacement "DoN. Nichols" <BPdnicholsBP@d-and-d.com> - 2016-01-22 03:36 +0000
    Re: 3B1 disk replacement bill@server3.cs.uofs.edu (Bill Gunshannon) - 2016-02-03 17:34 +0000
      Re: 3B1 disk replacement "DoN. Nichols" <BPdnicholsBP@d-and-d.com> - 2016-02-06 04:06 +0000
  Re: 3B1 disk replacement Dave Brower <dbrower@gmail.com> - 2016-01-23 19:53 -0800

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