In 1895, Otto Steiger, a Swiss citizen residing in Munich, obtained a U.S. patent for a calculating machine that would multiply a number by a single digit directly, with only a single turn of a crank.

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 ...

A DISPLAY of calculating machines was arranged early this month by the Burroughs Adding Machine, Ltd.,at 136 Regent Street, London, W.I. The machines shown were of many types, ranging from the simpler ...

National 3000 automatic bookkeeping calculating machine no 101364 42-BT, by National Cash Register Company Limited, England, 1935-1945. This machine was formerly the property of Dr. L J Comrie FRS.

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 ...

Large scale calculating machines may make it feasible for the government to set production goals for major industries, Frederick V. Waugh of President Truman's Council of Economic Advisers told a ...