23 Sep
2002
23 Sep
'02
1:57 p.m.
-----Original Message-----
From: cctalk-admin(a)classiccmp.org
[mailto:cctalk-admin@classiccmp.org]On
Behalf Of Joe
Sent: Monday, September 23, 2002 7:08 PM
To: cctalk(a)classiccmp.org
Subject: Re: Xerox 820 lives!
Hey Glen,
That's good news. I never got around to testing that 820.
I did have a box of disks and docs for the 820s but maybe
Mike or someone else got it. ZCPR is a replacement command
processor for CPM. In simple terms, it is to CPM what DR DOS
was to MS DOS. It should run all the normal CPM commands
plus others. I'm using an enhanced version of ZCPR on my
SB-180. I have a printout of a help file that you can borrow
or I can copy the file the next time that I have the SB-180
setup and running. BTW ZCPR usually includes on-line help.
Try typing in HELP and see if it's there. You should be able
to find info on ZCPR on the net. I know that I did when I
first got the SB-180. There's also a book called "ZCPR, The
Manual" by Richard Kahn (sp?). I had a copy but it didn't
tell any more than what the disk help files did. I think I
gave that book to Bob Rief but he can't find it.
What kind of drive is in the 820?
Joe
At 06:43 PM 9/23/02 -0400, you wrote:
Glen,
I have a very complete set of docs and software that I received in the last
month for the Xerox 820.
The package included several 820's and at bunch of Televideo TS803's as well
as Z80 development systems (ZDS-1, with complete hardware and the
documentation).
It includes ZCPR3 software and the manual Joe refers to above (by Richard
Conn).
I don't have the space or time to even take some of the stuff out of the
boxes right now, but when I do I can make some copies of the diskettes.
I hope to look around at what documents should be scanned since I've
recently had some good results with the autofeed photocopier/scanner at the
office.
What do you need? Immediately, its probably easier for me to scan stuff than
to attempt to copy diskettes.
Dan Cohoe
Greetings to all --
About a year ago, Joe Rigdon very kindly gave me a number of
old machines
(thanks, Joe!), among them a Xerox 820. At the
time he gave
it to me, the
unit didn't power up, but today I finally
found the time to give it a
second look. After I reconnected a loose lead inside the
box it came to
life! This is my only machine with 8" disk
drives, so I'm
interested in
finding a good use for it.
I could use some help from the list members, though. I found *no*
technical data via Google, and have *no* real docs for this
beast. After
poking at the 820 for a bit, here's where
I'm at:
--> The "B" drive is faulty. Disk initialization fails, and
it will
not
consistently read disks created on the
"A" drive. Any pointers on
replacement drives? Even if a thorough cleaning revives
this drive, I'd
like to obtain a spare.
--> Assuming I can't revive the "B" drive or find a
replacement,
how can I
duplicate diskettes? The CP/M utilities all seem
to want
two drives in
order to do their job.
--> Two of the boot diskettes which I have boot up a pretty
normal looking
version of CP/M 2.2, with a normal
"A>" prompt, but another diskette
displays the following upon boot:
"Good Day! ZCPR 2.04 SYSTEM READY"
and the prompt is "A0>" (obviously user group 0). What is
this
"ZCPR"?
--> Some of the utilities on the boot diskettes (FMT, for
example) refer to
hard disk drives. What's involved in
attaching a hard drive to this
system?
--> The flimsy "User Manual" which I have states that the
RS232 port
may be
configured to attach to a terminal or to a modem.
How?
--> Lastly, does anyone have any documentation on this
thing? If you can
part with it, I'd be glad to pay a fair
price.
Thanks in advance for any help you can provide. Although this system
doesn't appear to be special or unique, it does seem to be a
sort of nice,
friendly critter, and I'd like to put it into
use.
Later --
Glen
0/0
If I am not for myself, then who will be for me?
And if not now, when?
-- Pirkei Avot