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

Chuck Guzis cclist at sydex.com
Sat Jan 28 19:40:04 CST 2017

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:


Big, wide tape reels.


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