On 11/17/2017 09:17 AM, allison via cctech wrote:
> Also the Syquest 270mb IDE/parallel port cartridge disk. I have one
> that works
> and over a dozen carts. Its still in use in a ITX box using the IDE
> interface. After
> two decades of use it seems solid.
I've left out the non-floppy
On 11/16/2017 03:30 PM, Geoffrey Reed via cctech wrote:
>
> On 11/15/17, 9:44 AM, "cctalk on behalf of Fred Cisin via cctalk"
> wrote:
>> Can you name another 20 exceptions? (Chuck and Tony probably can)
>>
>>
>> --
>> Grumpy Ol'
No, the 9122C has two high-density, two-sided 80 cylinder drives. A drive
has no capacity, this is the function of the on-disk format.
;-)
"high-density" is even more meaningless than referring to them by their
capacity in a given format. It is a BOGUS marketing term!
On Thu, 16 Nov 2017,
On 16 November 2017 at 21:30, Geoffrey Reed via cctalk
wrote:
>
> ³Floptical² disks 720 rpm 1.6 Mb/s transfer 1250 TPI and 25MB unformatted
> capacity
Just FYI, your quote marks render on Linux as superscript 2s.
Using an Apple device? You might want to turn off smart
On 11/16/2017 12:30 PM, Geoffrey Reed via cctalk wrote:
> ³Floptical² disks 720 rpm 1.6 Mb/s transfer 1250 TPI and 25MB unformatted
> capacity
>
> LS-120 and LS-240 (which sadly I can¹t remember the specs of :(
How about the Caleb "it" drive (UHD144):
On 11/15/17, 9:44 AM, "cctalk on behalf of Fred Cisin via cctalk"
wrote:
>
>Can you name another 20 exceptions? (Chuck and Tony probably can)
>
>
>--
>Grumpy Ol' Fredci...@xenosoft.com
³Floptical² disks 720
On Wed, Nov 15, 2017 at 09:44:24AM -0800, Fred Cisin via cctalk wrote:
[...]
> 3.5" MFM "High Density" (sometimes called "1.44M", due to the most common
> formsat being 1.41 Mebibytes, or 1.44 of a unit of 1000*1024 bytes), were
> 300 RPM at 500,000 bits per second. (1M unformatted per side)
On Wed, 15 Nov 2017, Fred Cisin wrote:
On Wed, 15 Nov 2017, Christian Corti via cctalk wrote:
No, the 9122C has two high-density, two-sided 80 cylinder drives. A drive
has no capacity, this is the function of the on-disk format.
;-)
"high-density" is even more meaningless than referring to
On Nov 15, 2017, at 11:44 AM, Fred Cisin via cctalk
wrote:
> "400K" generally means Macintosh single sided, not DEC Rainbow, etc
For once, the physical format disambiguates those two!
The Rainbow disks are in flexible envelopes (and ~1.75” greater diameter).
(Got many
No, the 9122C model has two 1.44M drives. HP made several earlier 3.5"
On Wed, 15 Nov 2017, Christian Corti via cctalk wrote:
No, the 9122C has two high-density, two-sided 80 cylinder drives. A drive has
no capacity, this is the function of the on-disk format.
;-)
"high-density" is even more
Note that there were always some exceptions.
Weltec made a 5.25" drive at 180 RPM, to do "HIGH DENSITY"/"1.2M" at
250,000 bits per second on PC/XT.
Sony made some 3.5" drives that were 600 RPM, to use 500,000 bits per
second.
NEC used 360 RPM 3.5" drives, to have the same format structure
> On Nov 15, 2017, at 09:44, Fred Cisin via cctalk
> wrote:
>
>>> No, the 9122C model has two 1.44M drives. HP made several earlier 3.5"
> On Wed, 15 Nov 2017, Christian Corti via cctalk wrote:
>> No, the 9122C has two high-density, two-sided 80 cylinder drives. A drive
On 2017-11-15 1:44 PM, Fred Cisin via cctalk wrote:
No, the 9122C model has two 1.44M drives. HP made several earlier 3.5"
On Wed, 15 Nov 2017, Christian Corti via cctalk wrote:
No, the 9122C has two high-density, two-sided 80 cylinder drives. A
drive has no capacity, this is the function of
No, the 9122C model has two 1.44M drives. HP made several earlier 3.5"
On Wed, 15 Nov 2017, Christian Corti via cctalk wrote:
No, the 9122C has two high-density, two-sided 80 cylinder drives. A drive has
no capacity, this is the function of the on-disk format.
;-)
"high-density" is even more
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