11 Aug
2021
11 Aug
'21
7:42 a.m.
There are guides online, the differences are documented, I believe you can tell from the
outside. Bezel color is not always a 100% indicator.
Floppies are at least easy for them! If no one else can do it, ping me and I can run off a
set.
Thanks,
Jonathan
??????? Original Message ???????
On Wednesday, August 11th, 2021 at 10:37, Tom Uban via cctalk <cctalk at
classiccmp.org> wrote:
I have a Xerox 820. I don't know how to tell if it
is a -II or not. It is marked as U05-013264
September 1984. It powers on and boots the monitor. Looking at the PROMs, they are
labeled:
U33 5.0, U34 5.0, U35 5.0, U36 5.0, U37 4.01, U38 4.01
At some point, I need to ask someone to make me bootable 8" floppies, but I suppose
I need to
determine if it is 820 or 820-II first...
At least some of the ROMs appear to be available here (along with other info):
http://bitsavers.org/pdf/xerox/820-II/firmware/
--tom
On 8/11/21 9:04 AM, Mark G Thomas via cctalk wrote:
> Hi,
>
> I'm not prepared to lay out $200 for these Xerox ROMs, but if I do manage
>
> to get them, I'll read and share them. I did not know there were 5.0 ROMs
>
> for the 820-II, but it appears there were, and they are included.
>
> https://www.ebay.com/itm/184980603844
>
>
> Mark