Re: About 400k Pascal Disk: help !

[Jerome Vernet <vernet.jerome@wanadoo.fr>]

Le 4/04/03 23:26, dans qa6cnTeAeOQdZRCjXTWcpQ@comcast.com, ��Bill Garber��
<willy46pa@comcast.net> a judicieusement �crit�:

> 
> Michael J. Mahon <mjmahon@aol.com> wrote in message
> 20030404154356.28474.00000532@mb-fv.aol.com">news:20030404154356.28474.00000532@mb-fv.aol.com...
>> This is a single-sided 3.5" format.
>> 
>> The question is whether it is MFM or GCR, but the custom controller
>> argues strongly for MFM.  So there is a very good chance that it can
>> be read on a PC that can read DD 3.5" disks, by simply reading the
>> blocks that are on only one side.
>> 
>> The Pascal file system is, of course, another issue, which others
>> have solutions for.
> 
> If I recall, HP had it's own system of CP/M in the beginning, but
> I can't be quoted having never used them. Shop folk were not
> permitted to operate the inspection room computers, and there
> were none elsewhere except the office, but I do recall seeing
> those disks in the inspection room next to the machine's console.
> As a matter of fact, that was the very machine they used.

We think that the drive is exactly the same as these HP. It's in fact 3.5
360 k single Sided MFM disc. What should be useful is a prog that can deal
with Pascal SS disc on a PC, or may be ADFS with a Superdrive Mac. ;-)

J. VERNET