Deciphering an odd floppy disk format.

[Fred Cisin]

Thanks for the brochure.
That looks like a fascinating project!
Computerworld mentioned it occasionally in 1980.


I love that "Pl/1 will soon emerge as the dominant language of 
microcomputers"


If you haven't already exhausted such leads (apologies if you already 
have), some trivial GOOGLE'ing turned up the name (and autobiography) of a 
guy who designed one of their disk controllers:
https://onedrive.live.com/?authkey=%21AFZhXO9UdDh2wbg&cid=5982EE6D20F4C106&id=5982EE6D20F4C106%2111901&parId=root&o=OneUp

https://www.old-computers.com/museum/forum.asp?c=1286&st=1

https://philosophycentral.org/technology/


Sorry, NO technical details of the controller that he designed.


On Mon, 15 Feb 2021, Mattis Lind wrote:
> Well. Now this is NOT a standard 179x that has written this. As I mentioned
> early on in this thread it was not at all possible to read the disks with a
> standard controller. The bit rate was off by quite a bit and the general
> format is different. So this is not necessarily a CRC at all. The machine
> that has written these is the Q1 Lite computer. A very odd mid-seventies
> system. http://bitsavers.trailing-edge.com/pdf/q1/Q1_Sales_Brochure.pdf.