8 Oct
2024
8 Oct
'24
4:41 p.m.
On 2024-10-08 5:00 p.m., Fred Cisin via cctalk wrote:
On Tue, 8 Oct 2024, roger arrick via cctalk wrote:
That is because the 5.25 was 'no standard' format, because the selling
of a cheap
media device. 35 tracks, single density to who knows what, as every
other year a new standard and media.
I think the real reason Kildall stuck with that standard,was sectors
were 128 bytes, and things had to shoehorn into what memory you had.
CPM I think was only 2K of ram for the OS,and 256 bytes of system RAM.
I figured he was mistaken, the old
'standard' is SSSD.
Well, that's the CP/M "standard".,
and, admittedly, on my first look at the message, I, too, did a double
take on "double density"
I once had a brief discussion with Gary Kildall, in which I pleaded with
him to create a "secondary" standard for 5.25".
He replied, "THE CP/M standard is Single Sided Single Density."
He felt that people, disunirregardless of which hardware they were using
SHOULD be able to transfer back and forth with 8" SSSD
So, we ended up with thousands of 5.25" formats.
The original poster was NOT CP/M, so 8" SSSD was not applicable. He said:
Why are we archiving now, 25 years ago was the deadline?
The disks are boot media and other materials
relating to the RSRE Flex
operating system <https://en.wikipedia.org/wiki/Flex_machine> as
developed for PERQ workstations.
--
Grumpy Ol' Fred cisin(a)xenosoft.com
Ben.