20 Mar
2014
20 Mar
'14
5:40 p.m.
Those spots certainly will be fungi. I wouldn't use those disks in any
drive, although you could try washing them as a last resort if you really
needed to extract some files.
Your problems with the Osborne sound very similar to the ones I had with my
first machine. These are memory mapped devices so any junk going through
RAM is going to trigger all sorts of unpredictable behaviour. My problem
was a faulty 4116 chip. See 1/2 way down my blog article at:
http://www.classic-computers.org.nz/blog/2008-12-06-osborne-repair-1.htm
Terry (Tez)
On Fri, Mar 21, 2014 at 11:53 AM, supervinx <supervinx at libero.it> wrote:
Il giorno gio, 20/03/2014 alle 18.27 -0400, Dennis
Boone ha scritto:
Well, there were original Osborne disks, labeled "Osborne 1"
And it booted from a double density IMD create disk...
This is why I'm convinced my Osborne 1 belongs to the last production,
with DD drives...
I powered
it and it showed a crisp and vivid monitor :D
I had a bunch of disks, but none of them worked (boot error).
So I tried them elsewhere: they were all Double Density (so I have DD
drives) but almost unreadable: the surface is dirty and covered with
spots, may be fungi :(
Original O1 machines were SD, not DD. Sounds like you're convinced
these diskettes belong with the machine, though.