What's the rarest or most unusual computer-related item do you own?

[COURYHOUSE at aol.com]

Doug!  We would like a  scan of your dad's certificate!
 
We have  an ongoing collection on this computer  at   SMECC
 
    1955 Honeywell computer business was  originated from the Datamatic 
Corporation, founded in Newton MA, as a  joint-venture by Raytheon and 
Honeywell, to produce large-scale computer  systems. Raytheon sells its 40% interest 
to Honeywell in  1957..  1957 Installation of the first Datamatic  D-1000 
to Blue Cross/Blue Shield of  Michigan.
 
 
 Honeywell Datamatic 1000  uses 3 inch wide tape
we have a 3 inch very very heavy reel and  the 30 something  track  tape 
drive head.... could this someday be the start of  the  ultimate  DIY tape 
drive build and tape recover? 
 
see more  on this computer here... and  we have modules  for  this tube   
computer we need to photo and more stuff to scan and add. 
http://www.smecc.org/honeywell_datamatic_1000.htm
 
 
 
 
 
In a message dated 1/29/2017 1:27:26 A.M. US Mountain Standard Time,  
billdegnan at gmail.com writes:

On Jan  28, 2017 8:51 PM, "william degnan" <billdegnan at gmail.com>  wrote:
>
>
> On Jan 28, 2017 8:40 PM, "Chuck Guzis"  <cclist at sydex.com> wrote:
> >
> > On 01/28/2017 05:12  PM, Douglas Taylor wrote:
> > > I have a certificate that my  father was given in 1957 for training on
> > > a Honeywell  Datamatic 1000 computer.
> > >
> > > Here is a summary  of this 'advance' in computer technology from the
> > >  ACM:
> > >
> > > The DATAmatic 1000 (D-1000) is a  high-capacity electronic
> > > data-processing system designed  specifically for application to the
> > > increasingly complex  problems and procedures of present-day
> > > business. The system  incorporates significant new systems techniques,
> > > as well as  several basically new component developments. One of the
> > >  outstanding features of the D-1000 is its ability to feed information
>  > > from magnetic tape into the central processor at a sustained rate  of
> > > 60,000 decimal-digits per second, and to deliver data  after
> > > processing back to magnetic tape at this same rate.  The operational
> > > speed of the central processor maintains  full compatibility with the
> > > high speed of information  transfer. Consequently, the difficulties
> > > caused by programs  which are either tape limited or processing-time
> > > limited do  not arise in the majority of commercial applications of
> > > this  system.
> >
> > Doug, you can probably re-live part of your  dad's experience.  There 
are
> > some Datamatic 1000 manuals on  bitsavers:
> >
>  >
http://bitsavers.informatik.uni-stuttgart.de/pdf/honeywell/datamatic_1000/
>  >
> > Big, wide tape reels.
> >
> >  --Chuck
> >
>
> I am pretty sure I have the first print  of that manual, but I thought
Datamatic was a pre-Burroughs machine not  Honeywell...I am not home to
check, if you'd like me to I can Monday.   That's the base 10 system,
right?  I also have some orig decimal  counter tubes IIRC too.  I suppose
that all qualifies as pretty  rare.  Or I am confusing with a different,
similarly - named  system.
> Bill

Yup I must be mistaken.  Nevermind I'll check  when I get back to my  office

B