On Tue, 28 Mar 2023, Chuck Guzis via cctalk wrote:
The shipment that was being returned via Fedex, was, in fact 70 8 inch
diskettes, ca. 1983--all read just fine.
I guess that's a concern for our current removable media, be it Blu-ray
DVD, USB pen drive, microSD card, or cloud. I wonder how muc
Awesome. Thank you so much.
Regards,
Tarek Hoteit
> On Mar 28, 2023, at 4:31 PM, Smith, Wayne via cctalk
> wrote:
>
> I did some research as to where Dean and Molly (Mary Alice) Hendrickson
> lived and the address I come up with is 20 Interlaken Road, Greenwich, CT
> 06830. There is no st
On 3/28/23 18:06, Fred Cisin via cctalk wrote:
> At Comdex and West Coast Computer Faire, I used an advertising slogan of
> "save your data from extinction". In the booth, we had some inflatable
> dinosaurs, including a T. Rex taking a bite out of an 8" Verbatim disk.
> Some kid came up and told
"1.4M" disks (1,474,560 bytes of data / 1.474 SI Megabytes / 1.40625
Mebibytes) are often called "1.44M", because that number is derived from
1,024,000 bytes per "megabyte" (2^10 * 10^6, 1000 * 1024), giving 1.44.
I can find no defensible reason for that corrupted size for a "megabyte".
Therefore,
On 3/28/23 17:03, Fred Cisin via cctalk wrote:
> "1.4M" disks (1,474,560 bytes of data / 1.474 SI Megabytes / 1.40625
> Mebibytes) are often called "1.44M", because that number is derived from
> 1,024,000 bytes per "megabyte" (2^10 * 10^6, 1000 * 1024), giving 1.44.
> I can find no defensible reas
On Tue, 28 Mar 2023, Ali via cctalk wrote:
https://auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0
312/users/4f92de2852282d0c4055f15836cd43f760275f36/i-img1200x675-
1672137143s8ehmb271085.jpg
Looking at this picture it indicates the disk is 406TPI which is
significantly higher
On 3/28/23 15:31, Ali via cctalk wrote:
>
> I don't know if we are talking about different things? You are speaking about
> a 3 Mode drive that allows 1.2MB on 3.5" drives. I am asking about a Tri
> Density (as in SD, HD, ED, TD) drive. Supposedly these drives were going to
> use longitudinal
Sure; consider the very common Samsung SFD-321B, particularly page 5:
. . .
Another type of "tri-Density" drive is the fairly common Teac FD-235J,
which can do 720K, 1.44M and 2.88M. I've got a couple installed in
older systems.
On Tue, 28 Mar 2023, Ali via cctalk wrote:
I don't know if we a
I did some research as to where Dean and Molly (Mary Alice) Hendrickson lived
and the address I come up with is 20 Interlaken Road, Greenwich, CT 06830.
There is no street view on Google but from the satellite photo it looks like it
could be the same house as I seem some of what appear to be si
>
> https://auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0
> 312/users/4f92de2852282d0c4055f15836cd43f760275f36/i-img1200x675-
> 1672137143s8ehmb271085.jpg
>
Looking at this picture it indicates the disk is 406TPI which is significantly
higher than the 96TPI used with 1.2MB HD
> Sure; consider the very common Samsung SFD-321B, particularly page 5:
>
> Another type of "tri-Density" drive is the fairly common Teac FD-235J,
> which can do 720K, 1.44M and 2.88M. I've got a couple installed in
> older systems.
Chuck,
I don't know if we are talking about different
On 3/28/23 00:27, Ali via cctalk wrote:
> Yes, R. Stricklin (Bear) verified it as such. So have you ever seen a Tri
> Density drive? Or was it just a paper announcement that never made it out of
> the lab? I'd figure if anyone may have seen one it would be you ;)
Sure; consider the very common Sa
On 3/27/2023 9:23 PM, Zane Healy wrote:
On Mar 27, 2023, at 7:54 AM, Bill Gunshannon via cctalk
wrote:
LS120's were the most unreliable format I ever used. Disks were
frequently
unreadable mere weeks after making them and the drives were so touchy
even a slight bump was enough to make th
Hi,
Has anyone been successful in communicating using cu or some
other method to transfer files between two SIMS running Unix V ?
If so I would appreciate some help.
Thanks,
Ken
--
WWL 📚
> Most likely, the 3-mode drive. 8x1024 sectors on each track, giving a
> capacity of about 1.23MB. Many PCs of the era could also handle the
> drives, which would change spindle speed from 300 to 360 RPM. 3 mode
> drives were manufactured right up until the end, but usually were
> configured a
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