Date   : Tue, 22 Oct 1991 18:24:24 GMT
From   : csus.edu!wupost!sdd.hp.com!mips!nec-gw!netkeeper!vivaldi!necssd!floden@ucdavis.ucdavis.edu (Fred Loden)
Subject: Re: Xerox something-or-other help?

In article <384601w164w@gnat.rent.com> cmcewen@gnat.rent.com (Chris McEwen)
writes:
>techs@triton.unm.edu (Erik Fichtner) writes:
>> i've come across this machine made by Xerox.  it's got a Terminal module
that
>> got the CPU inside it.. it's a Z80A machine.   connections on the back
go to 
>> Comm, Printer, Keyboard, and Disk Drives.
>> 
>> the disk drive module, is unfortunatly shot. (more specifically, the
Shugart 
>> hard disk is shot.. it's been blowing up fuses and power supplies left
and ri
>> needless to say, i've trashed it)   the floppy still works.  anyways..
>> 
               Text Deleted
>
>What you describe is a Xerox DEM-II. It is based on the Xerox 820-II, 
>with the motherboard in the bottom of the terminal cabinet and an 
>external drive cabinet about the size and shape of a PC, which holds a 
>floppy and a hard drive. The parameters for the hard drive are set in the 
>ROM bios (tracks, heads, etc.) so you will need to replace the Shugart 
>100-4 with a similar model. Once up and running, it makes a nice little 
>10MB CP/M box.
>
               Text deleted
>_______________________________________________________________________
>Chris McEwen    Internet: cmcewen@gnat.rent.com | The Computer Journal
>Editor, TCJ  uucp: ..!att!nsscmail!gnat!cmcewen | PO Box 12
>                      GEnie: c.mcewen -or- TCJ$ | S Plainfield NJ 07080
>The Spirit of the Individual Made This Industry | (908) 755-6186

I believe Chris is incorrect in the statement made above. What you have is
a hard/floppy disk system. The floppy is probably a Shugart 851 8" double
sided double density drive but it could be a Shugart 801 8" single sided
double density drive. The hard drive is (was) a Shugart 1004. The 1004 is 
an 8" 10 megabyte drive that requires a DTC controller board. If you had a
dual 8" floppy assembly you could plug it into the back of the floppy/hard 
drive assembly and have a total 3 floppies and 1 hard drive.

If interested, I have 2 or 3 1004s to sell. I would like to get $50.00 plus
shipping each.

----

 Frederic J. Loden            NEC America, Inc. (SSD)   phone:(214)-518-4160
 floden@ssd.dl.nec.com        1525 Walnut Hill Lane, Irving, Texas 75062
 necssd!floden@cs.utexas.edu       standard disclaimers apply...
-- 
 Frederic J. Loden            NEC America, Inc. (SSD)   phone:(214)-518-4160
 floden@ssd.dl.nec.com        1525 Walnut Hill Lane, Irving, Texas 75062
 necssd!floden@cs.utexas.edu       standard disclaimers apply...