This full-keyboard direct multiplication non-printing electric calculating machine has an iron and steel case painted black, The nine columns of plastic black and white keys are colored according to ...

This German key-set manually operated stepped drum calculating machine has nine columns of black plastic keys, with nine keys in each column. The rods between each row of keys, colored black on one ...

Jeroen van den Bos and Davy Landman honor the computer scientist Alan Turing by recreating his calculating machine with LEGOs. Kasia Cieplak-Mayr von Baldegg is the former executive producer and ...

SCIENTIFIC computing has been materially aided of late years by the development of calculating machines, a development in which scientific workers themselves have had a say. We may instance the use of ...