Hello all (posted separately to uk.d-i-y and to alt.folklore.computers).
Back in September I asked in these two groups if anyone could enlighten me as to the identity and the purpose of a ?mystery object?. It is part of our Newcastle University Historical Computing Collection (
https://nuhc.ncl.ac.uk/NEWUC:2025.0002). I said (on 29 Sept.! - sorry) I?d come back with the conclusions.
To remind you, this is the object:
https://wiki.diyfaq.org.uk/index.php/File:Mystery_Object_0.jpg https://wiki.diyfaq.org.uk/index.php/File:Mystery_Object_2.jpg https://wiki.diyfaq.org.uk/index.php/File:Mystery_Object_3.jpg https://wiki.diyfaq.org.uk/index.php/File:Mystery_Object_4.jpg
The long and short of it is that it is a ?patchboard?, probably from the 60s, or earlier. (This fact alone was a valuable revelation to our present committee!)
A decisive extract from the early discussion was this (from IndyJessJohn in DIY):
The first computer room I worked in had ancillary equipment for dealing with punched cards [including] an IBM Collator. ? The whole thing was controlled by patch boards. By connecting one hole to another by a jump lead and using a collections of such connections it was possible to programme the machine to subdivide and/or merge depending on the outcome to be achieved.
The key similarity was that the control boards had a handle like the one in
the picture and that allowed the control board to be lowered into a slot;
then a lever moved the slot and board into contact with fixed connectors in
the machine.
[?]
The unit pictured is a lot smaller than the ones I wired up ?.
Further advice from the DIY group led me to alt.folklore.computing, where more discussion took place, Scott Lurndal's response neatly summarised 2 or 3 of
the suggestions made in the group:
This appears to be a pre-programmed plug that plugs into a matching plug-board (rather than wiring with individual jumper wires; the user could simply plug
in this entire board). Perhaps a crypto-key, but also could be a sort
pattern for a card sorter.
which in turn led me to Glenn Henry?s Collection of patch boards and the
like:
https://www.glennsmuseum.com/items/ibm_card/
I emailed Glenn, and he replied (these days it?s always a pleasant surprise to get a reply from a ?mature? website!). Basically, he said that although he has very many patchboards, he?s never seen one like this, and his examples are all much bigger..
CONCLUSION: We would have liked to identify more closely the machine with
which the patchboard might have been used, but discussions dried up, and so
...
(1) This patchboard obviously didn?t use jumpleads: it has been soldered.
(2) Therefore it was made in-house for a fixed purpose, which probably would never change (see above).
(3) It may possibly have been made for use with [a peripheral for] our first computer - a Ferranti Pegasus (1957-1963), or its successor an EE KDF9 (1963-1974). (Our subsequent mainframes were IBM S/360-67, IBM S/370-168 and
an Amdahl 5860 - none likely to have used this object.)
(4) Or it may have nothing to do with anything in the University?s Computing Laboratory, and was simply given to our "founding father? as something for his collection: we will never know, because time has marched on, and there is no-one now alive who will have known this object ?in person?.
Thanks all, and best wishes!
Another John
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