28 Jan
2012
28 Jan
'12
5:54 p.m.
Holger Veit wrote:
Problem is of course that the Elektor OSI computer
uses a rather
obscure floppy controller and formatting (some GCR emitted by an
asynchronous 6850 that is hacked into a synchronous mode).
It's FM, not GCR.
Of course, it's not IBM-standard FM. Normally it can
only be read and written on an OSI (or Elektor) system. Given how
expensive FDC chips were when OSI designed their floppy controller, I
suppose it can be considered a clever hack, though nowhere near as
clever as Woz's design for the Disk II controller.