"Model K" Adder (replica)

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Date Introduced
1980
Photographer
Richards, Mark
Dimensions
300 x 200 mm
Manufacturer
Stibitz, George R.
Credit Line
Gift of George Stibitz
Copyright Owner
© Mark Richards
Object ID
XD127.80

George Stibitz made the original version of this in 1936 on his kitchen table, hence the name “Model K.” Using scrapped relays from Bell Labs and strips of metal from a tin can, it can add two binary digits. Stibitz himself built this replica.