Allard's Computer Museum Groningen

The Abacus

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The Abacus click a big view


In november of 2003 I bought a nice Abacus on internet, it was used as a present for a 12.5 year celebration of the use of an IBM 444 tabulating machine from 1967 by Interpolis, Tilburg, The Netherlands in 1980.
Thanks Interpolis, Concern communicatie, for the info


Here a view of the complete set




The Abacus was provided wiTh this note :-)





On the internet I found this picture; also an abacus and IBM
see also my first generation page

And here a sticker

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The Abacus manual click a big view




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Here the scans of the original Dutch manual