17 May
2023
17 May
'23
1:36 a.m.
On Tue, May 16, 2023, 8:30 PM Fred Cisin via cctalk <cctalk(a)classiccmp.org>
wrote:
Well, that would be "spot on", as the
formatted capacity of an ST-251 was
40 Megabytes.
When used with MS-DOS, prior to
MS-DOS 3.31, it would be partitioned as
two 20MB, or as a 32MB plus an 8MB.
(V3.31 was the first version of MS-DOS to support a partition larger than
32MB)
That's how I used it on my DEC Rainbow under MS-DOS 2.11 and later 3.10b.
And recently under venix...
Warner
On Tue, 16 May 2023, Mike Katz wrote:
> The biggest drive I remember seeing on OS/9 was 20MB or 40MB. I
> don't remember the File Allocation Table size or format.
>
> On 5/16/2023 7:14 PM, Fred Cisin via cctalk wrote:
>> On Tue, 16 May 2023, Mike Katz via cctalk wrote:
>>> Most likely there was some kind of driver for the CoCo that
>>> converted the ST-251 into smaller logical drives for the CoCo
>>> Operating system.
>>
>> One fellow, who used to be involved in Cocos, recalls one or more
>> systems that handled it by MANY "virtual floppies" on the drive.
>>
>> I think that OS-9 may have had support for "big" drives.
>>
>> --
>> Grumpy Ol' Fred cisin(a)xenosoft.com