Brevis descriptio machinae arithmeticae, cum figura.
Berlin: Johann Christian Papen, 1710. First edition, the Macclesfield copy, of this milestone in computer history, Leibniz’s description of his famous calculating machine, the first stepped-drum calculator, and the first machine that could perform multiplication and division. “Leibniz studied Morland’s and Pascal’s various designs and set himself the task of..... More
Item #5781